CNC WORKHOLDING SERVICES

When the Part Will Not Hold, Production Cannot Move Forward

NNG evaluates the workholding system, identifies practical service options and helps restore the clamping force, stability and repeatability the process depends on.

Legacy Equipment | Hard-to-Source Parts | Testing & Documentation | Repair, Exchange or Replace | Emergency Service

CNC Workholding Repair & Rebuild Services

Workholding problems affect more than the chuck or fixture itself. Reduced clamping force, poor repeatability, runout and unreliable actuation can compromise part quality, create safety concerns and slow production. NNG Industries provides inspection, repair, rebuilding, modification, exchange and replacement support for CNC workholding systems and related machine tool components. The goal is not simply to replace a worn seal or damaged jaw. NNG evaluates the chuck, actuator, draw tube, clamping system and related operating conditions so the recommended service path reflects the condition of the equipment and the demands of the application.

Chuck Repair & Rebuild

Inspection, repair and rebuilding support for power, manual, hydraulic, pneumatic and specialty chuck systems.

Jaws, Collets & Draw Tubes

Inspection, reconditioning, replacement and sourcing support for jaws, collets, draw tubes and drawbars.

Drawbar & Encoder Service

Inspection and repair support for drawbars, encoders and related spindle components.

Steady Rest & Live Tooling Service

Repair and service support for steady rests, live tooling and related workholding components.

Precision Machining & Modification

Machining, grinding and modification support for damaged components, custom jaws, fixtures and revised production requirements.

Exchange & Replacement Options

Exchange-unit evaluation and replacement sourcing when repair is not the most practical option.

Intake → Inspect → Diagnose → Approve → Repair → Test

Why NNG

Technical Support Built Around Reliable Clamping

A workholding problem may involve more than the component showing the most obvious wear. NNG evaluates the system, application and available repair options so customers can make a more informed decision about how to restore clamping performance and production reliability.

Machine support across multiple systems, one relationship.
More ways to restore secure, repeatable workholding.

Workholding Components We Service

NNG supports a broad range of workholding components used across CNC turning, milling and industrial machining applications. Service availability depends on the manufacturer, model, condition, technical information and parts availability.

Support for Current and Legacy Equipment

NNG works with workholding systems across multiple machine generations and may assist with obsolete or difficult-to-source components when drawings, repairable parts or qualified alternatives remain available.

Service Coordination

Depending on the project, NNG may coordinate intake, shipping, pickup, inspection, exchange and return logistics to provide a clearer path from failure to resolution.

Chuck Systems

Power chucks
Manual chucks
Hydraulic chucks
Pneumatic and air chucks
Indexing chucks
Collet chucks

Actuation & Clamping Components

Hydraulic actuators
Pneumatic actuators
Chuck jaws
Collets
Draw tubes
Drawbars

Related Workholding Components

Steady rests
Live tooling
Tool holders
Magnetic chucks
Clamping systems
Custom workholding fixtures
3-axis, 4-axis and 5-axis rotary fixtures

ONE FAILURE. FOUR POSSIBLE PATHS.

The Right Path...

Depends on the component’s condition, repair history, replacement availability, production requirements and whether the workholding system must support a new or revised setup.

Repair or rebuild

Restore the existing spindle when its condition and repair economics support continued service.

Modify

Adapt chucks, jaws, fixtures or related components for a new part, setup or production requirement.

Exchange

Reduce downtime when a compatible exchange unit is available.

Replacement

Source a new, rebuilt, used, OEM or qualified aftermarket spindle when repair is not practical.

WORKHOLDING REPAIR QUESTIONS

What Customers Need to Know

Answers to common questions about evaluation, testing, exchange availability and what to send with a service request.

What information should I provide?

Send the machine make and model, workholding manufacturer, component model and serial number, symptoms, photos and hydraulic or pneumatic pressure information when relevant. Additional details can be uploaded through the service request form.

What types of chucks does NNG service?

NNG may support power, manual, hydraulic, pneumatic, air, indexing, collet and other common chuck systems.

Can NNG modify a chuck or jaws for a new application?

Modification may be possible depending on the component condition, part geometry, available drawings and technical requirements.

Are exchange units available?

Exchange availability depends on the manufacturer, component model and current inventory.

Can NNG support obsolete workholding components?

Support may be possible when repairable parts, technical drawings, replacement components or qualified alternatives remain available.

What testing is performed?

Testing may include clamping-force evaluation, leak testing, actuation testing, runout inspection, dimensional verification and functional operation.

RESTORE CLAMPING PERFORMANCE

Need Workholding Service?

Send the machine manufacturer, model, spindle details, serial number, symptoms, photos and required timing. NNG will review the information and help identify the most practical next step.