What to Look for When Buying Used Röhm Workholding
Röhm chucks and clamping devices are built to exacting German standards with hardened and ground components. Used units often retain excellent accuracy, but workholding is a wear item and inspection ensures you get full value.
On power chucks, check jaw condition, scroll mechanism, and clamping force. Inspect jaw faces and serrations for wear or chipping. Test the scroll for smooth jaw movement across the full range. On DURO-A and DURO-NC models, verify through-hole bore concentricity. Use a clamping force gauge to confirm rated gripping force. On DURO-NC models, cycle the quick jaw change mechanism to verify reliable engagement.
On hydraulic/pneumatic cylinders, inspect seals and actuation. OV and OVS oil-operated cylinders actuate power chucks on CNC lathes. Check for hydraulic leaks at seals and fittings. Test full stroke for smooth piston travel. Verify rotary union operation at speed. Worn seals reduce clamping force and create safety hazards.
On machine vises, verify jaw parallelism and clamping accuracy. Röhm KZS centering vises and NC vises require parallel jaw faces for precision work. Check for jaw wear, lead screw backlash, and base flatness. On centering vises, verify that both jaws move symmetrically to center the workpiece accurately.
Verify chuck mounting compatibility. Röhm chucks use DIN 6350 and ISO 702 mounting dimensions. Confirm spindle nose type (cam-lock, threaded, or bolt-on) and size match your machine. Back plates adapt chucks to different spindle configurations but must be machined for concentricity.
Röhm Power Chucks
DURO-A Series
The DURO-A is a 3-jaw power chuck with through-hole for automated turning. Designed for high speeds (up to 8,000 RPM in the 165 mm version), high clamping force, and reduced interference contour. Replaces the legacy KFD-HE and most KFD-HS sizes with backward-compatible jaw mounting. Available in multiple sizes with hydraulic or pneumatic actuation.
DURO-NC Series
The DURO-NC features a quick-acting jaw change system that reduces setup time significantly on CNC lathes running mixed part families. The jaw change mechanism allows rapid conversion between different workpiece diameters without removing the chuck from the spindle. Available in standard and through-hole configurations.
KFD & KBF Series
The KFD-HS (high-speed) and KFD-HF/KFD-F power chucks serve heavy-duty and high-precision applications. The KBF-N ball lock draw-down chuck provides pull-back clamping for positive workpiece seating. These models serve demanding automotive and aerospace production environments.
Röhm Manual Chucks & Drill Chucks
Manual Lathe Chucks
Röhm manufactures 3-jaw self-centering and 4-jaw independent lathe chucks in sizes from small toolroom models through large industrial units. All manual chucks feature hardened scroll mechanisms and ground jaw seats for long-term accuracy. Röhm manual chucks are specified as original equipment on lathes from manufacturers worldwide and remain among the most widely traded used workholding products.
Drill Chucks
Röhm pioneered the drill chuck and remains the global market leader. The Prima keyed chuck, Supra keyless chuck, and Extra-RV keyless chuck cover applications from hand drills through precision CNC drilling operations. All are manufactured in Sontheim, Germany.
Röhm Vises, Centers & Clamping Systems
Röhm KZS-P and KZS-PG centering vises and NC vises provide precision workholding for milling and machining centers. Live centers and dead centers support workpieces on lathes and grinding machines. Clamping mandrels (produced at the St. Georgen facility) hold rotationally symmetric parts for turning and grinding. Self-centering steady rests support slender turned parts. Röhm also produces HSK tool clamping systems and robotic gripping technology for automation applications, including the iJaw smart clamping jaw with real-time force measurement for Industry 4.0 integration.
How to Sell Your Used Röhm Workholding
Röhm workholding holds strong resale value as premium German-manufactured clamping technology. Power chucks, manual lathe chucks, and machine vises are consistently in demand from shops upgrading or retooling CNC lathes and machining centers.
Resell CNC buys used Röhm products: every model, any quantity, 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 Röhm Workholding
Is Röhm still in business?
Yes. Röhm GmbH manufactures workholding at three German sites (Sontheim, Dillingen, St. Georgen) with approximately 1,000 employees and over 50 subsidiaries worldwide. Röhm Products of America in Suwanee, Georgia handles North American sales, service, and chuck repairs.
Are used Röhm chucks reliable?
Yes. Röhm chucks are manufactured in Germany with hardened and ground components designed for long service life under demanding production conditions. Many Röhm chucks operate reliably for decades. RPA offers full repair and rebuild services for chucks that need reconditioning.
Will a used Röhm chuck fit my lathe?
Röhm chucks use standardized DIN 6350 and ISO 702 mounting dimensions. Confirm your spindle nose type (A-series cam-lock, D-series, threaded, or bolt-on) and diameter before purchasing. Röhm back plates are available to adapt chucks to most spindle configurations.
What is the difference between DURO-A and DURO-NC?
Both are Röhm power chucks for CNC lathes. The DURO-A is optimized for high-speed, high-force production turning with standard jaw mounting. The DURO-NC adds a quick-acting jaw change system for rapid changeover between different workpiece sizes, ideal for shops running mixed part families with frequent setup changes.
What Röhm products hold their value best?
DURO-A and DURO-NC power chucks, KFD-series hydraulic chucks, and manual 3-jaw and 4-jaw lathe chucks maintain strong resale values. Larger chucks (12 inches and above) and specialty clamping devices command premiums. Call (844) 478-8181 for current valuations.
How do I sell my used Röhm workholding?
Contact Resell CNC at (844) 478-8181 or sales@resellcnc.com. We buy individual chucks, complete clamping packages, cylinders, vises, and mandrels. Any quantity, any condition, nationwide. Free appraisal within 24 hours.