Guhring
Guhring has extended its GM 300 toolholder range with precision clamping chucks and additional Guhrojet-shrink fit chucks. Among the new products is Thermo Secure Gold 3000 shrink fit chuck, the module 66 for highly accurate fine adjustment of six-fluted tools and the MQL 4-point clamping set that is now available for different spindle contours.

The Thermo Secure Gold 3000 shrink fit chucks feature a length setting screw with axial force damping and a special locking screws. When shrink fitting, the heating and subsequent cooling of the chuck and the tool does not only result in an essential radial shrinking but also in an unwanted axial shrinking. If the shrink fitted tool is sitting on the setting screw, it can lead to minimal tool concentricity inaccuracies with conventional solutions. The new length setting screw with axial force damping compensates the axial length difference with the integrated, flexible compensation element. On request, the length setting screw with axial damping is also suitable for retrofitting conventional Guhring shrink fit chucks.

Up until now you could not tell the temperature of a shrink fit chuck. With an optical temperature indicator on the new chucks this source of danger is a thing of the past. A red ring signals: Attention, hot! Risk of burning! The chuck temperature is above 45°C. When the temperature reduces to below 45°C, the ring turns blue. The chuck can then be handled without danger. Optimal clamping is achieved with a shrink fitted tool.

The setting of six-fluted tools is now performed quickly, simply and accurately with Guhring’s module 66. Setting screws for the radial and axial setting sit perfectly below the cutting edges of the tool allowing the correction of concentricity errors at the position they are detected. This offers users up to 70 per cent time saving in tool pre-setting, a cost reduction as well as a highly accurate tool setting in his production.

The optimal cooling lubricant delivery on module 66 without hanging and swirling ensures perfect machining results thanks to cooling and lubricating the cutting edges of the tool without loss. In conventional tool holders the cooling lubricant swirls and hangs and the coolant exits into hollow areas in the holder, in the Guhring system the cooling lubricant is supplied in a straight line without hanging or swirling from the machine through the tool holder to the cutting edge.

Now users don’t need to go without the maximum clamping force of their tool holders and the advantages of MQL machining because they do not apply a Guhring spindle contour. Because now there are Guhring’s four-point clamping sets available for many customary spindle contours

MQL offers time and costs savings, increases quality, is environmentally friendly, safe and simple to use.
www.guhringcanada.com

Exsys Tool
Preci-Flex toolholders from Exsys Tool Inc. are fast, accurate and cost-effective solutions for lathe tooling changeovers, claims the company. The modular system is the first tooling system on the market with a single base holder and multiple tooling adapters that utilizes the ER collet pocket.

Offering flexibility, precision and cost savings, the Preci-Flex’s compact design assures maximum torque transmission and rigidity, resulting in increased machining accuracy and improved productivity. Additionally, the toolholder’s conical and flat face planar interface allows the use of either an adapter or a standard ER collet, and enables collets, endmill holders, expanding collet chucks and shrinks fit tooling to be mounted on a single base holder.

Available in a range sizes, Preci-Flex provides unsurpassed repeatability, with every toolholder offering repeatability within five microns. The system also virtually eliminates machine downtime, and allows tooling adapters to be interchanged between fixed and rotary base holders for fast, economical machining.
www.exsys-tool.com

GenSwiss
GenSwiss has introduced the GenBore ID Triple toolholder that adds three ID tool stations in place of a standard OD turning position on most Swiss type CNC machines. With this new toolholder, work can be expanded to include spotting, boring or drilling, all from one position for more cost effective machining of complex parts. The toolholder features easy integration of high pressure coolant delivery systems, and can be configured for thru-coolant delivery through one, two or all three tool positions. The GenBore includes (3) ER11 5/8 in. shank collet sleeves, removable location screw to re-position the holder on the gang plate, and set screws on both sides of the holder to suit RH & LH machine layouts. The ½ in. shank includes shim-plate for machines using 5/8 in. shank tooling. When required, the new toolholdher can be easily removed returning to a standard OD turning position to suit specific machining requirements.
www.genswiss.com/genbore_swisstool.htm

Iscar
Iscar’s latest toolholding innovations include the Hydrofit hydraulic chucks, The Shrinken toolholder line for milling and the Maxin power chuck for roughing and finishing applications.

The Hydrofit hydraulic chucks qualify for high speed machining (HSM) and simplify tool changing, presetting and fine balancing more than ever before. Suitable for stationary or rotating tool applications of up to 15,000 RPM, the new chucks deliver the clamping force, accuracy, dynamic balance and vibration damping necessary to protect brittle solid carbide round tools in HSM work. Runout accuracy is 0.003 mm.

The hydraulic chucks require only moderate hand torque on an Allen key to clamp and unclamp the tool—right in the spindle. The turn of an internal preset screw adjusts the datum to wher you want it. Optional threaded holes facilitate fine balancing. Chuck styles suit all popular HSK, DIN and SC machine interfaces and to handle four main shank types: taper shanks for rotating applications; VDI DIN 6980 shanks in sizes 30 and 40; ST 25, 32 FINEFIT ADJ with 070 flange for stationary tools; and FINEFIT ADJ taper shanks with 070 flanges for rotating tools.

The Shrinkin toolholder line is designed for milling applications requiring higher rigidity. These new toolholders integrate the Shrinkin ER SRK collets with standard taper shanks to form a single, solid piece toolholder. These units may be used for solid carbide, steel and HSS shanks.

The Maxim power chuck offers clamping power for fast metal removal rate. With only a small tightening torque, it compresses the frontal nose, providing high gripping force. It is designed for roughing and finishing applications in milling wher high torque transmission, maximum accuracy, compactness and easy operation are required.

The clamping nut (featuring a sealed nut construction) is not threaded (as in ER collet chucks) and it is designed for direct chucking of the tool shank (no need for intermediate collet) for maximum gripping force. There is no axial drawback of the tool shank as chuck is tightened. And thick wall construction withstands greater side loading forces. The high gripping force results from the shallow nose tapered cone with helical slot inside the internal chuck bore. It exerts a very high clamping force when the clamping nut is rotated in the axial direction. The shallow taper of the tool nose and the angled position of the needle bearing that sit in the cage create the axial movement of the clamping nut. Run-out accuracy is maximum at 100 mm and overhang is less than 0.01 mm.
www.iscar.ca

Lyndex-Nikken
Shrinking and unshrinking toolholders is efficient and easy with Lyndex-Nikken’s latest Shrink Fit Machine. In as little as two seconds, the machine can firmly insert a cutting tool into a Shrink Fit Holder, making this unit the fastest shrink machine available, according to the company.

With its patented induction coil, the shrink fit machine can handle cutter bodies made from HSS, heavy metals and carbide. The additional benefit of the automatic cutter size detection function eliminates the need for inputting the size of the cutter shank, thus reducing set up time. The machine is compatible with all holders with varying geometries, shrinking 2 – 40 mm with the same inductor.

Designed to be plug-and-go, the
Shrink Fit Machine is equipped with a three-phase 220V power connector for shop compatibility. The compact table top design and the machine’s shrinking range (14.57 in., shrinks .080 to 1.5 in./370 mm, shrinks 2 mm to 38.1 mm) make this shrink fit unit a versatile yet powerful tool for shrink fit needs.

Ideal for use with the Shrink Fit Machine, Lyndex-Nikken offers a complete line of Shrink Fit Holders, including CAT40, CAT50, HSK32E, HSK63A, HSK80F, BT30, 40 and 50. They are available in multiple lengths, and in both inch and metric sizes. Lyndex-Nikken Shrink Fit Holders offer optimal balance and maximum grip characteristics. They are made in Japan with the H13 Heat Resistant Hot Working Tool Steel, and pre-balanced and balanceable up to 40,000 RPM.
www.lyndexnikken.com

REGO-FIX
REGO-FIX’s new Rego Plus line of toolholders are fully compatible with all Big Plus spindles and licensed by BIG Daishowa.

The new product series includes a full line of ER system toolholders, as well as a full line of powRgrip system toolholders. All products in the line are made by REGO-FIX at its Switzerland manufacturing facility and hold to the strict Swiss standards that the company is known for.

The new Rego Plus line offers several advantages to manufacturers working
with high precision milling machines equipped with the Big Plus system.

These include better TIR, improved tool stiffness, increased quality of surface finishes and higher machine accuracies. All Rigo PLus products are designed for form B coolant and accommodate through-the-taper coolant as a standard feature.
www.rego-fix.com

Sandvik Coromant
A new range of integrated tool holders from Sandvik Coromant are designed for compatibility with CoroMill 316 exchangeable-head (EH) tools. The holders achieve a secure performance better than a cylindrical shank clamped in a precision chuck, with comparable tool overhang, regarding torque transmission, run out and accuracy.

For best overall machining results, tool overhang should always be kept to the absolute minimum. Integrated holders with an EH coupling provide a shorter total programming length compared to cylindrical shank tool holders with EH coupling. Integrated holders therefore provide the highest stability, when all other machining variables are the same.

With modular tooling possibilities these holders can be used in many tooling combinations to suit various applications and machine tools, from a smaller inventory of standard items. For greater tooling flexibility these holders reduce set-up times, require minimum adjustment of tool length for each application and a stable performance is always guaranteed.

Sandvik Coromant’s QS holding system, already available for users of Citizen and Star automatic sliding head lathes, is
now being introduced for machine shops with Tornos, Tsugami and Nexturn sliding head models.

With the QS (Quick Start) system, tools can be slid in and out quickly, automatically locking into place on centreline, thus improving repeatability and accuracy thanks to its highly secure positioning in the tool post. In simplistic terms, QS consists of a system of stops, wedges and short toolholders that replac conventional tool post hardware. The result is reduced downtime through faster tool changes.

Released as part of Sandvik Coromant’s CoroPak 10.1 phase of product introductions, the following new QS components are available: QS wedges for Nexturn SA20 and SA26 machines; QS wedges and stops for Tsugami B0, BS, BU, BM, BN, BA and BW models; and QS wedges and stops for Tornos Delta 12 and 20 machines. Toolholders are available to suit CoroTurn 107, CoroCut 1, -2, -3, CoroCut XS and CoroThread 266.
www.sandvik.coromant.com

Schunk
Schunk’s is a new holder for automated tool and cutter grinding with the ability to clamp diameters between 5 and 20 mm, without additional components or time-consuming changeovers, and offering high repeat accuracies of less than 0.005 mm. These are ideal conditions for automated manufacturing of small batch sizes of all cutting tool types.

The principle function is based on a precise clamping sleeve with prism guidance. Each of the five chuck jaws are guided by a double prism. A third prism is on the clamping face, which directly contacts the tool shank. The holder always adjusts itself to the individual tool diameter. Even deep hole drills and fluted tools can be clamped precisely with the Prismo. During the clamping operation, the five hardened and coated chuck jaws intermesh. The basic sleeve and the robust design provide a high stiffness to the holder.

At an overhang length of 2.5 x D with a tool diameter of 20 mm, the Prismo provides a repeat accuracy of less than 0.005 mm. Regardless of which tool diameter is to be machined, the X-axis of the grinding toolholder remains unchanged. All the chuck jaws actuate on the identical axial position. Time-consuming additional programming and the interference due to incorrect axis offsets are problems of the past.

With the Tendo E compact, it is no longer required to use different holder technologies for milling, drilling, and reaming. For the first time ever, hydraulic expansion toolholders can safely transfer torques of up to 520 Nm (384 ft-lbs) at a 20 mm clamping diameter and are suitable for high volume cutting. With excellent vibration damping and precise run out accuracy of less than 0.003 mm (0.0001 in.) at 2,5 x D, the holder protects the machine spindle and the cutting tool from damage. The hydraulic expansion toolholder works well across the application range from rough milling to finish operations such as reaming and fine milling.

In roughing operations, tool cost reductions of up to 40 per cent have been achieved with Tendo E compact. Tools can be quickly changed with an Allen key, making this powerful hydraulic expansion toolholder an excellent alternative for operations wher the toolholder quantities do not justify peripheral equipment purchases.

All common spindle connections are available for ¾ in. interfaces HSK-A63, SK40, BT40 and CAT40. For nearly all cutting tool shank diameters, other versions are scheduled for future release.
www.schunk.com