What to Look for When Buying Used Schunk Workholding and Toolholding
Schunk manufactures over 11,000 standard components across clamping technology and gripping systems. Used Schunk products retain strong value due to German precision engineering, broad compatibility, and ongoing parts support. Here is what to inspect.
On lathe chucks, check jaw condition, clamping force, and runout. Inspect jaw serrations for wear or damage. Test clamping force with a gauge against the original specification. Measure chuck runout on a ground test bar. On ROTA NCR pendulum compensation models, verify the compensation mechanism operates smoothly. On quick jaw-change models (ROTA THW3, ROTA NCX), test for positive jaw seating and repeatability. Check seals for coolant intrusion on sealed models like the ROTA NCR-A.
On toolholders, verify bore condition and clamping performance. Inspect the taper (HSK, CAT, BT) for fretting, nicks, or corrosion. On TENDO hydraulic expansion holders, test the clamping screw and verify the hydraulic chamber holds pressure. On TRIBOS polygonal clamping holders, confirm the bore is clean and undamaged. Both TENDO and TRIBOS holders should achieve under 3 microns runout at the rated projection length.
On vises and pallet systems, check alignment and locating accuracy. On KONTEC vises, test clamping force and verify fixed-jaw parallelism. On VERO-S quick-change modules, verify the clamping pin interface for wear and test repeat positioning accuracy (under 5 microns). Confirm pneumatic actuation on powered models.
Schunk ROTA Lathe Chucks
The ROTA-S plus 2.0 is Schunk's flagship manual lathe chuck for turning and milling. The ROTA NCE is a weight-reduced power chuck that lowers moment of inertia by up to 40%. The ROTA NCR and ROTA NCR-A six-jaw pendulum compensation chucks provide low-deformation clamping for thin-walled workpieces. The ROTA NCX combines quick jaw-change with a large through-hole, while the ROTA THW3 features patented sealing and permanent lubrication. The ROTA TB2 pneumatic self-contained chuck serves pipe and rod machining for oil and mining applications. The ROTA-S Flex provides flexible clamping for mixed turning/milling work. Schunk manufactures the world's largest standard chuck jaw program, including soft jaws, hard jaws, stepped jaws, and lightweight aluminum variants.
Schunk Toolholders
TENDO Hydraulic Expansion
The TENDO E compact is Schunk's best-selling hydraulic expansion toolholder for milling, drilling, and reaming. The TENDO Platinum provides maximum rigidity through improved brazing technology. The TENDO Slim 4ax features a slim profile for 5-axis clearance with optional CoolFlow coolant-through. The TENDO Aviation targets aerospace applications, and the TENDOturn provides hydraulic clamping for lathe turrets.
TRIBOS, SINO-R & CELSIO
The TRIBOS polygonal clamping system achieves sub-3-micron runout with zero maintenance. Models include TRIBOS-S (standard), TRIBOS-Mini (micro machining), TRIBOS-SVL (slim extensions), and TRIBOS-RM (driven lathe tools). The SINO-R provides maintenance-free clamping for rough milling. The CELSIO shrink-fit line offers high rigidity with thermal expansion technology.
Schunk Workholding Systems
The VERO-S quick-change pallet system uses zero-point clamping to reduce setup times by up to 90%. Modules range from the full-size NSL plus through the NSE mini to the NSE Mikro 49. The KONTEC vise family includes single-acting KSC, five-axis KSX and KSX-C2, double-clamping KSC-D, and the compact KSC mini. TANDEM clamping force blocks provide self-centering clamping for automated pallet loading. MAGNOS electro-permanent magnetic plates eliminate clamp interference for 5-sided access. PLANOS vacuum clamping serves thin or non-ferrous workpieces.
How to Sell Your Used Schunk Products
Schunk products maintain strong resale value due to global brand reputation and broad market demand. ROTA chucks, TENDO toolholders, VERO-S pallets, and KONTEC vises are in consistent secondary-market demand.
Resell CNC buys used Schunk products: every product line, any condition, nationwide.
- Contact us — call (844) 478-8181 or email sales@resellcnc.com.
- Free appraisal within 24 hours, no obligation.
- Accept the offer — we handle pickup and logistics.
Frequently Asked Questions About Used Schunk Products
Is Schunk SE & Co. KG the same as Schunk Group?
No. Schunk SE & Co. KG (Lauffen am Neckar) manufactures clamping technology and gripping systems for machine tools and automation. Schunk Group (Heuchelheim, Hessen) manufactures carbon, ceramics, and sintered metal products. They are separate, unrelated companies.
What spindle interfaces does Schunk toolholding support?
Schunk TENDO and TRIBOS toolholders are available in HSK-A, HSK-E, CAT 40, CAT 50, BT 30, BT 40, BT 50, SK/DIN, Capto, and other interfaces. ROTA lathe chucks mount to standard A2 spindle noses. Specify the correct interface when purchasing used toolholders to ensure machine compatibility.
Are used Schunk products reliable?
Yes. Schunk products are engineered and manufactured in Germany to exacting standards. The company has produced over 1,000,000 grippers and 100,000 lathe chucks. TENDO toolholders require no maintenance under normal use. ROTA chucks benefit from periodic lubrication and jaw replacement, with parts available through Schunk's global network.
What Schunk products hold their value best?
ROTA power lathe chucks (particularly NCE and NCR models), TENDO E compact and Platinum toolholders, VERO-S pallet modules, and KONTEC KSC/KSX vises maintain strong resale values. Products with current-generation spindle interfaces (HSK-A63, CAT 40) hold premiums. Call (844) 478-8181 for current valuations.
Does Resell CNC offer financing on used Schunk products?
Yes. Resell CNC offers flexible financing options to help your shop acquire premium workholding and toolholding. Contact us at (844) 478-8181 to discuss terms.
How do I sell my used Schunk workholding or toolholding?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy every Schunk product line: ROTA chucks, TENDO/TRIBOS/SINO-R/CELSIO toolholders, VERO-S pallets, KONTEC vises, MAGNOS magnets, grippers, and modules. Any condition, nationwide. Free appraisal within 24 hours.