NORIS STABIL UNI HSS-PS TiCN in machining situation through hole: Chips are evacuated in the
cutting direction.
NORIS taps for processing a wide variety of steel alloys, cast iron and various nonferrous alloys are well known under the names SALOREX UNI for blind holes and STABIL UNI for through-hole. REIME NORIS now extends the UNI series to high performance taps made of HSSE-PM (HSS-PS) with improved cutting geometry and TiCN coating. NORIS SALOREX UNI – the specialist for deep blind hole threads up to 3 x D thread depth – has 42° right-hand helix flutes. These provide secure chip removal against the cutting direction. NORIS STABIL UNI stands for the production of through hole threads up to 4 x D thread depth. The special STABIL-flutes move the chips in the cutting direction. The drills are available in metric sizes from M3 to M20 and M8 x 1 to M16 x 1,5 in stock. In both versions, the use of powder metallurgical high-speed steel permits higher cutting speeds while increasing tool life. The user benefits by increasing the cycle times and a reduction in tool costs. With the ability to process a very wide range of materials, additional cost of storage and tool investment can be reduced. The proven cutting edge geometries were further optimized in detail. They are specially adapted to the characteristics of the HSSE-PM substrate and the coating. REIME NORIS thus promises significant performance gains and expects especially in the production of small- and medium-sized series, the greatest economic advantages of using these high performance taps.
For more information, please contact Duncan Macdonald – Tel: 011 444-4345.
In a market where skilled artisans are becoming more and more scarce, it has become necessary to look at alternative ways of machining, whether it be for general engineering, tool-making or production work CNC machining is quicker and certainly more accurate than conventional milling machines and there is no need for constant monitoring while in use. Taking this into account, MJH Machine Tools have a solution to suit customers’ needs. Featuring an entry level CNC control, our Ctek CNC milling machine is the first step to CNC machining. As long as the operator has basic knowledge on using a DRO, he can, within a few hours, be taught how to program and run the machine. There is no need for G code knowledge as the control is conversational, using a question and answer format. The software is simple to use with graphic input in basic machinist language. The control has options for standard operation modes such as drill, tap, bore, contour and pocket programming, which is ideally suited to general engineering work without a need for external programming packages. The latest Ctek’s come with linear guides on all three axes for better accuracy and speed, as well as a direct spindle drive motor and an improved Z axis motor with inline break which eliminates the need for a counterbalance. The Ctek can be fitted with a 4th axis within a matter of hours and programmed from the standard Ctek control.
The Ctek range has six x-travel sizes, 800mm, 1 000mm, 1 500mm, 1 800mm, 2 000mm and 2 500mm. These machines are available in open type or fully enclosed depending on the customer’s requirements. All spares are available ex stock at a fraction of the cost compared to other controls. With hundreds of these machines sold throughout South Africa since 1997, it is not surprising that Ctek CNC milling machines have been the first step to full CNC machining in many workshops. Should there be a requirement for a high performance machining centre for super fine finishing and accuracy, the Akira Seiki is the machine to consider. Spindle power ranging from 15HP on the Junior series to 42HP on the Super Vertical range and spindle speeds from 9 000rpm to 15 000rpm guarantee high quality surface finish. Akira Seiki machines come standard with spindle oil chillers, inner spindle air chiller, coolant through spindle, pneumatic counter balance, chip screw conveyor, quick change ATC and 4th axis preparation.
For further information, please contact MJH Machine Tools – Tel: (031) 705 7514.
Several years ago, ISCAR launched a unique and innovative LOGIQ product line – a campaign that brought new families of cutting tools to the world market. These families were designed to address challenges in metalworking industries, from increasing productivity to finding cost-effective indexable alternatives to small-in-diameter solid carbide tools.
Today, ISCAR introduces NEOLOGIQ, a logical extension to the previous campaign comprising of an entire range of advanced products and technological solutions for metal cutting tools – a quantum leap in the field. What are the main targets of the NEO product lines? ISCAR believes that NEOLOGIQ provides the answers to typical questions that modern metalworking faces today due to the latest changes in technology. Today, we are witnessing serious upheaval with far-reaching effects on manufacturing.
A distinct course for electric and hybrid cars will lead to a gradual abandonment of traditional cars with an internal combustion engine and a lot of parts that need to be machined.
NEOLOGIQ products. An intelligent tool to expand machining boundaries.
A rise of accurate metal shaping methods, such as precision investment casting, precision forging, and 3D printing, which are all capable of shaping a part very close to its final profile, significantly diminishes the stock that is traditionally intended for chip-removal processes. A logical result of this is the considerably reduced share of machining operations in a part manufacturing cycle and this trend is already noticeable in the market today. Does it mean that a few good metalworking shops, factories, or even whole branches will abandon machining? Of course not, but the requirements for machining operations in engineering processes will be changed. The role of productive and accurate cutting with a small allowance at high speeds and feeds will substantially grow, and metalworking industries will require a wide range of suitable tools that are expected to be more precise and durable.
Digitized manufacturing, which is dictated by INDUSTRY 4.0 momentum, has its own demand and expects a new level of a cutting tool “intellect” to be suitable for smart manufacturing.
In preparing for the upcoming changes, ISCAR considers NEOLOGIQ as the next logical step to the cutting tool for the smart factory. ‘Machining with no Boundaries’ is the motto of ISCAR’s NEOLOGIQ products.
How do we overstep the customary boundaries of metal cutting? A short overview of some of the new products will help you understand how this is viewed by ISCAR.
Logical Milling
High feed milling (HFM), also referred to as fast feed milling, is considered a commonly used effective method for rough machining both complex and plane surfaces. ISCAR has an extremely wide range of HFM products to meet the requirements of a customer. However, even in this niche of products, there is place for new innovations.
LOGIQ4FEED, a family of high feed milling cutters carrying specific bone-shaped inserts, was enriched by new tools with greater insert sizes. These new tools have several features that substantially improve performance in high feed milling, especially when machining big cavities and pockets in steel parts.
NEOFEED high feed milling cutter carries cost-effective inserts with 8 cutting edges.
Another HFM product that provides the customer with a reasonable cost saving solution is NEOFEED, a family of mills with square, double-sided inserts. This insert has 8 indexable cutting edges to use on cemented carbide and a dovetail-shaped insert pocket that ensures reliable mounting to withstand heavy loads to enable higher cutting data and increased productivity.
The progress in 5-axis machining and CAD/CAM systems opens new horizons for machining 3D surfaces using barrelshaped endmills. Although such endmills are still not common in the metalworking industry, advanced accurate metal shaping methods will dramatically increase the demand for these barrelshaped endmills. Therefore, the development of effective “cutting barrels” is one of ISCAR’s highest priorities. In the NEOLOGIQ product range, the barrel-shaped endmills are represented by two configurations: a solid carbide design and a MULTI-MASTER head. Combining MULTI-MASTER advantages with the precise barrel profile of a cutting-edge will result in a cost-effective and sustainable solution for finishing complex-shape surfaces by milling with minimum machining stock.
The MULTI-MASTER family has expanded the boundaries of its product range by introducing a new threaded connection size, T21, which enables increasing the nominal diameter of an exchangeable endmill head to 32 mm (1.25″).
Intelligent Turning
Anti-vibration boring bars WHISPERLINE enable stable cutting with the overhang up to fourteen diameters.
In internal turning, a boring bar is the main factor of tool rigidity. A large bar overhang to diameter ratio leads to the tool deflection and vibrations; and is the bane of machining accuracy and surface finish. WHISPERLINE, a family of anti-vibration boring bars, was developed to exceed the ratio bounds. These bars have a specially designed built-in absorber and a vibration-dampening mechanism that enables stable cutting with an overhang of up to 14 diameters.
WHISPERLINE bars are important elements of the new versatile modular system NEOMODU, providing a rich variety of assembly options for turning tools. A combination of different system units such as shanks, anti-vibration capsules, and interchangeable heads with indexable carbide inserts result in a tool assembly, which is maximally customized to a specific application. The shanks may be cylindrical, square, or with a polygon taper interface in accordance with ISO 26623 standard.
Speaking of new turning products, one cannot pass the XNMG insert. It is a beneficial combination of two famous ISO rhombic insert shapes: CNMG and DNMG inserts with 80° and 55° including angles. This intelligent integration resulted in the XNMG 70° angle insert that features improved clearance and ramping angles, when compared to the CNMG, and strengthened cutting corners against DNMG. The advantages of the new insert are visible in efficient multi-directional turning applications. The cartridges carrying insert XNMG, which are intended for mounting on NEOMODU units, are available as well.
Competent Parting
ISCAR began its leadership with just parting tools. That is why every company’s innovation in parting gains special interest.
A JETCROWN accessory provides pinpointed high-pressure coolant, maximizing productivity in parting.
Adapters and holders occupy a prominent place among ISCAR’s NEOLOGIQ parting products. The concept of the LOGIQFGRIP family is based on a 4-pocket adapter that is clamped in a reinforced tool block. High rigidity of such an assembly in combination with an inner highpressure coolant supply (HPC) option facilitates productive cutting with extremely high feed rates.
In parting, one of the secrets to success is well-directed highpressure cooling. If an adaptor has no HPC channels, mounting a specially designed crownshaped accessory pushes the boundaries of application limits and enables effective pinpointed coolant flow to the active cutting edge of an insert.
Growing capabilities of modern multitasking machines and turning centers pushed the common boundaries of cutting strategies. Particularly, they brought the method of efficient turning along Y-axis. In quite a few cases, it is a worthy alternative to the traditional X-axis machining. In Y-axis turning, the dissipation of cutting force components is more favourable, and the main load is directed to a holder. The cutting process becomes more stable, and this facilitates increasing cutting data to improve productivity. Therefore, providing appropriate cutting tools for turning operations along the Y-axis is one of the central points of NEOLOGIQ.
LOGIQYGRIP, a new Y-axis parting modular system enables vibration-free machining with high-efficiency. A wide range of exchangeable TAGPAD-T adapters for inserts ensures the exceptional versatility of the system.
Efficient Holemaking
Helical flutes with variable helix angle in a LOGIQCAM drill body improve the dynamic behavior of the drill and increase the drilling depth to eight drill diameters.
One of the more impressive product lines introduced in the LOGIQ campaign is LOGIQCHAM, a family of drills with replaceable carbide heads and three cutting edges, providing an effective tool for significantly increasing productivity for drilling depths up to five drill diameters.
In drilling, especially in drilling deep holes, efficient chip evacuation is extremely important. It is not enough to optimize chip control by an advanced design of the head geometry. The flute shape should ensure seamless chip flow. Undoubtedly, the need to organize three grooves weakens the body: when comparing a two-helicalflute drill of the same diameter, the three-flute body is less rigid. When the depth grows, longitudinal vibrations may occur, and this reduces tool life and adversely affects the accuracy and roughness of a machined hole. It was the decrease in stiffness that determined the barrier for the drilling depth and limiting it by five diameters maximum.
A new design of the three-flute drill body is based on a variable flute helix angle. Such a concept considerably improves the dynamic behaviour of the drill and results in expanding the drilling depth boundaries: the maximum depth can now reach eight diameters.
The metalworking community faces new challenges and must find the shortest way to get out of the maze. ISCAR believes that new innovative solutions, which take machining to a whole new level, can become the new “Ariadne’s thread”. NEOLOGIQ, a logic of development for a new range of tools, has expanded the boundaries of intelligent machining.
For more information, please contact ISCAR South Africa (PTY) LTD – Tel: 011 997-2700.
MODUGRIP Modular Grip Cartridges: New Modular Adapters for Parting and Grooving.
MODUGRIP is a new compact modular adapter system for parting and grooving applications that enables design of modular tools in envelope dimensions of integral shank tools with similar sizes.
ISCAR’s DO-GRIP, HELI-GRIP, TANG-GRIP and PENTACUT parting and grooving adapters can be clamped on the same toolholder, with an accurate and rigid attachment guaranteed since machining forces are not exerted on the clamping screws. High pressure coolant channels is directed to the cutting edge for maximum flow efficiency.
With no set up time due to the high edge location repeatability after adapter indexing and less downtime as a damaged pocket can be replaced while retaining the shank, MODUGRIP offers a complete economical solution. In addition, the absence of any under head protrusion means that the system can be used with most types of machine.
MODUGRIP can be considered as the most compact system in the market today, as other standard systems feature larger tool head dimensions.
For more information, please contact ISCAR South Africa (PTY) LTD – Tel: 011 997-2700.
Rapidly advancing CNC technology is driving innovation everywhere, especially in CNC machine tools and software. The key to being able to innovate and remain competitive is to take advantage of the technology trends adapting to market demands.
The newest edition to the Hwacheon successful Hi-TECH Line – Hi-TECH 750 is a CNC lathe with 15 – 24” chuck and solid box guide ways in all axis. The creation of the HI-TECH 750 follows the very successful Hi-TECH 850 series which was launched more than ten years ago.
The new Hi-TECH 750 adopts the same successful path as the Hi-TECH 850, where the machine’s standard, variations and options are wide and flexible and can be utilised in practically all industries and applications.
Applications of Horizontal Turning Center Hi-TECH 750
The modern design of Hi-TECH 750 gives a clear signal to the market, that this is not only a new horizontal turning centre, but also a modern and further enhanced machine specifically designed following market and customers’ feedbacks and application needs. While standard 2-axis to multi-axis machining including the requirements for modern manufacturing have been considered, the flexibility of the H-TECH 750 provides multi-axis turning for large shaft type application and complex parts which require turning OD & ID as well as milling, drilling and tapping operations. From standard steel to modern tough materials such as Inconel, titanium, stainless steel, high tensile stainless steel, the extraordinary machine structure and design will be the basis for all variations and applications demands.
Key Features of Horizontal Turning Center Hi-TECH 750
Following the Hwacheon principle, key functions come as standard and are included at no extra cost, such as the precision main spindle including an oil-jet lubrication system for bearings including a high capacity oil cooling and filter unit
The machine is supplied with a powerful direct main drive and gear box (no belt drive) featuring up to 45Kw and up to 6,560Nm torque, subject to the CNC control system selected.
Other key features are a high capacity milling drive system up to 11.3Kw and 215Nm torque plus a 280mm wide turret disk, including twelve (12) stations with BMT 85 tooling holder as standard.
The programmable built-in tailstock which provides not only a very rigid and solid support to even the most heavy workpieces, compensates automatically for the growth and shrinking rate of a warming and cooling workpiece.Available spindle bore sizes are diameter 132mm or 185mm, resulting in a bar size of 116 or 164mm, respectively, while big bore versions will follow suit.
The Hi-TECH 750 horizontal turning center features not only a simple slant bed design but a trapezoidal-designed machine bed. The strong and dynamic tailstock is mounted at the slant bed section of the machine and so is the optionally available steady rest base for hydraulic as well as standard manual steady rest versions. The unit for X – Z and Y-axis is mounted on a solid flat-bed design to ensure highest stability and accuracy at all times and conditions.The triangular saddle is a highly optimized unit where the Y-axis can perform without limitations or chattering or weaker performance results.The basic machine bed weight for our Hi-TECH 750 short version (2,250m) is 8 tons, while featuring a high quality meehanite casting, extra wide guide way designs and sizes, providing extreme stable cutting conditions. Available length sizes are 2.25m / 3.25m & 4.25m.
Enhanced user convenience is provided through new designed spindle drive system which is bringing the machines main spindle centre closer to the operator (546.5mm), while optionally available is a modern programmable steady rest base, providing everything a customer would need to use a manual or hydraulic steady rest of various make and sizes.Customer can choose a bracket where the steady rest can be mounted at left or right side or if preferred for ultimo flexibility at both sides
A large and deep pocket (above spindle / chuck) is providing easy operation for long boring bars. Users worldwide appreciate that large and long boring bars (up-to max. diam. 80 x 800mm) can be left mounted at turret unit and still standard operations are possible to conduct with other tools mounted at turret. Larger and longer boring bar solutions are available at on request.
The large dimensioned front doors of Hi-TECH 750 provide wide dimensioned safety windows for easy view during operation, while an optional auto door function is available.Maintenance is made easy as coolant tank and chip conveyor can be moved out from under the machine to the front.
For more information, contact Lead Machine Tools – Tel: 021 534-5351
The SN71C is a universal centre lathe designed for piece and small-lot production for turning workpieces of bigger dimensions. It is suitable for maintenance and repair divisions as well. A wide range of operational speeds and its unique execution ensure high stability in material machining.
Designed for easy maintenance and a long lifetime, the SN71C offers low operating costs, an easy and ergonomic control plus high turning precision. Added to these features, there are various versions with a wide range of optional accessories available, which include digital read-outs, quick-change tool posts, steady – and follow rests, rolling contact bearings for steadies, micrometric stops, taper turning attachments, faceplates and chucks.
Grey cast iron is used during construction of the machine guaranteeing minimization of vibrations throughout the machining process, while hardened bed guide ways provide long lifetime and constant accuracy of machining.
Hand scraping has been applied for high precision during machining.
Universal centre lathes belong to the most requested products of production portfolio from TRENS SK. Since half of the twentieth century they were known under the brand TOS and are still fulfilling the highest customers´ requirements. Thanks to persistent quality and sustaining development TRENS SK ranks among the leading producers of universal centre lathes in worldwide.
For more information, contact 600 SA Machine Tools – Cell: 072 157 6003
VC series vertical machining centres are fast, three-axis linear guide machining centres designed for customers doing batch or production work.
To meet the requirements for fast cutting, the 3 axes are equipped with linear guide-ways for quick responses in acceleration and deceleration and high rapid traverse of 48 m/min.
The machine features travels of 1,060 x 520 x 610 mm and comes with a table size of 1,160 x 520 mm. Supplied with a machine net weight of 5,900 kg, the VC1052 can accommodate a maximum table load of 650 kg.
While featuring a spindle speed of 12,000 rpm and motor power of 7.5/11 kW, the Takumi VC1052 provides a magazine capacity for24 tools. Rapids are 36 x 36 x 24 m/min.
Providing a perfect combination of fast cutting and high stability, the machine is designed and built for mould machining with pre-tensioned ballscrews minimizing thermal growth and improving accuracy.
An ergonomically designed table simplifies setup, while the swivelling control panel optimizes floor space utilization.
A robust, precision-machined casting, hand-scraped contact areas and an integrated wash-down chip management system add to the highlights of the Takumi VC1052.
The spindle chiller maximizes heat dissipation and direct-coupled ballscrews increase accuracy, while the absolute encoder ensures a fast start-up.
For more information, contact 600 SA Machine Tools – Cell: 072 157 6003
For the machining of a complete variety of turned parts for the oil & gas, defence, rail and power generation sectors, Medley Precision Engineering, a Mansfield UK based manufacturer is no stranger to machining difficult to cut materials, and this is why the company opted for the robust platform of the Harrison Alpha 1550XS from 600 UK.
The Harrison Alpha XS is a 2-axis manual/CNC lathe designed for fast, high-quality repeatability, accuracy and surface finish to exacting toolroom accuracy standards, which significantly reduces component production costs.
Commenting upon the machine acquisition, Medley Precision Engineering’s Production Manager Mr Stuart Solomon says: “It’s the best machine we have in the factory. This is because it is remarkably easy to program as it has its own Alphalink system that can be programmed on the laptop and I can draw parts and send them straight into the machine.”
The Alpha XS lathe benefits from the ultra-high speed Fanuc CNC control along with Harrison’s own developed Alphalink software. This software makes the Alpha ideal for new and experienced operators alike.
The flat-bed CNC lathe retains a conventional element and discussing this, Solomon says: “We often do low quantities of work and this machine can be up and cutting in a matter of minutes and this is a big bonus for our business.”
Highlighting other features that make the Harrison Alpha lathe the ‘best’ machine on the shop-floor at Medley, Solomon continues: “The machine has never caused us any issues or problems, so support isn’t a factor we’ve needed to be concerned about. It’s a very solid machine that is well built and extremely reliable. We are often cutting difficult materials like super duplex and the Alpha XS generates an excellent surface finish, something that is a credit to the build quality of the machine. It’s an extremely flexible and versatile machine and there isn’t anything I wouldn’t feel comfortable putting on the Alpha.”
Alpha XS and XC lathes are not only fitted with a wealth of standard features but also have a list of options available to suit every turning application.
For more information, contact 600 SA Machine Tools – Cell: 072 157 6003
Tongtai has released several new machines in the last two years including VMCs with turning functionality (VMT-200), 5 Axis VMCs with additive hybrid technology (AMH-350) as well as Ultra-sonic machining solutions (VU-5).
Tongtai always has and will continue to provide the best productivity vs cost ratio solutions to its customers. With the ability to supply single function CNCs all the way through to mass production turnkey systems, Tongtai is the ideal partner for any manufacturing organization.
With this is mind and following requests from customers, the decision was made to introduce a B-axis head multi-tasking CNC lathe.
When comparing to competitors, Tongtai has focused on overall larger diameters with longer length capacities.
Tongtai TMS Series mill/turn machines are available in 4 different models, each with 3 different configurations with up to 9 axes. The standard TMS machine has a main spindle with programmable tailstock, while the TMS-S has a sub-spindle in place of the tailstock, and the TMS-ST features both a sub-spindle and a lower turning turret. Maximum turning diameter is 660mm with bed lengths up to 2000mm.
The TMS Series consists of the TMS-2000 (8″ chuck, 51″ bar), TMS-2500 (10″ chuck, 76″ bar capacity), TMS-3000 (12″ chuck, 76″ bar capacity) and TMS-3800 (15″ chuck, 89″ bar capacity).
With such a large working envelope and machine options, the target workpieces and industries include aerospace, prototyping, medical, automotive, tooling and medium to mass production.
TMS Series machines feature a one piece 75° mono-block slant bed that permits free flow of chips as well as easy access to the spindles and cutting tools. A true linear (perpendicular) Y-axis simplifies programming. Roller-type linear guideways in all axes and large-diameter pre-tensioned ballscrews provide precise position accuracy. The machines are made of Meehanite cast iron for rigidity and vibration dampening.
Both main and sub-spindles feature dual-wound built-in motors with electronic high/low gears. Both spindles have a full Cs axis (0.001°) with braking system. Three-piece Hirth couplings rigidly lock the spindles in place in 1˚ increments for heavy milling and high accuracy. Spindle power ranges from 26kW on the TMS-2000
to 60kW on the TMS-3800. Both main and sub-spindles are liquid cooled for thermal stability.
The B-axis milling spindle has a zero-backlash roller gear drive with highspeed rotation of 33.3 rpm and ±120˚ of movement from the vertical position. It features a rigid 3-piece coupling to lock the spindle in place for heavy turning and can be indexed in 15° increments.
The integral spindle milling motor delivers 22kW and 12,000 rpm and a 40 station with 80 optional arm type tool changer is standard, while an optional 10 station lower turret provides turning capability to both spindle as well as pinch turning ability with the B-axis. The automatic tool changer is available in either HSK-63T or Sandvik Capto C-6 tooling systems. These options mean the machine is especially suitable for small-volume, large-variety production.
The extended Y-axis stroke of ±125mm promotes less dependence on C-axis which results in shorter cycle times.
The standard Fanuc 31iT-B provides two-path control for simultaneous turning operations as well as 4+1 milling ability. The optional 31iT-B5 or Siemens 840D enables 5-axis simultaneous milling.
The benefits of multi-tasking machining are proven time and again. However, incorporating single clamping, easy tool set up and interchange ability means that machines become even more productive, while increasing efficiency leads to a better cost per piece for the user.
For more information please contact PBS Machine Tools – Tel: 011 914-3360.
Tongtai has released several new machines in the last two years including VMCs with turning functionality (VMT-200), 5 Axis VMCs with additive hybrid technology (AMH-350) as well as Ultra-sonic machining solutions (VU-5).
Tongtai always has and will continue to provide the best productivity vs cost ratio solutions to its customers. With the ability to supply single function CNCs all the way through to mass production turnkey systems, Tongtai is the ideal partner for any manufacturing organization.
With this is mind and following requests from customers, the decision was made to introduce a B-axis head multi-tasking CNC lathe.
When comparing to competitors, Tongtai has focused on overall larger diameters with longer length capacities.
Tongtai TMS Series mill/turn machines are available in 4 different models, each with 3 different configurations with up to 9 axes. The standard TMS machine has a main spindle with programmable tailstock, while the TMS-S has a sub-spindle in place of the tailstock, and the TMS-ST features both a sub-spindle and a lower turning turret. Maximum turning diameter is 660mm with bed lengths up to 2000mm.
The TMS Series consists of the TMS-2000 (8″ chuck, 51″ bar), TMS-2500 (10″ chuck, 76″ bar capacity), TMS-3000 (12″ chuck, 76″ bar capacity) and TMS-3800 (15″ chuck, 89″ bar capacity).
With such a large working envelope and machine options, the target workpieces and industries include aerospace, prototyping, medical, automotive, tooling and medium to mass production.
TMS Series machines feature a one piece 75° mono-block slant bed that permits free flow of chips as well as easy access to the spindles and cutting tools. A true linear (perpendicular) Y-axis simplifies programming. Roller-type linear guideways in all axes and large-diameter pre-tensioned ballscrews provide precise position accuracy. The machines are made of Meehanite cast iron for rigidity and vibration dampening.
Both main and sub-spindles feature dual-wound built-in motors with electronic high/low gears. Both spindles have a full Cs axis (0.001°) with braking system. Three-piece Hirth couplings rigidly lock the spindles in place in 1˚ increments for heavy milling and high accuracy. Spindle power ranges from 26kW on the TMS-2000
to 60kW on the TMS-3800. Both main and sub-spindles are liquid cooled for thermal stability.
The B-axis milling spindle has a zero-backlash roller gear drive with highspeed rotation of 33.3 rpm and ±120˚ of movement from the vertical position. It features a rigid 3-piece coupling to lock the spindle in place for heavy turning and can be indexed in 15° increments.
The integral spindle milling motor delivers 22kW and 12,000 rpm and a 40 station with 80 optional arm type tool changer is standard, while an optional 10 station lower turret provides turning capability to both spindle as well as pinch turning ability with the B-axis. The automatic tool changer is available in either HSK-63T or Sandvik Capto C-6 tooling systems. These options mean the machine is especially suitable for small-volume, large-variety production.
The extended Y-axis stroke of ±125mm promotes less dependence on C-axis which results in shorter cycle times.
The standard Fanuc 31iT-B provides two-path control for simultaneous turning operations as well as 4+1 milling ability. The optional 31iT-B5 or Siemens 840D enables 5-axis simultaneous milling.
The benefits of multi-tasking machining are proven time and again. However, incorporating single clamping, easy tool set up and interchange ability means that machines become even more productive, while increasing efficiency leads to a better cost per piece for the user.
For more information please contact PBS Machine Tools – Tel: 011 914-3360.
