Main image of the NextasTech High-Precision Pneumatic Vise
Automation Clamping Solution

High-Precision Pneumatic Vise

Engineered for Automated Production

The NextasTech high-precision pneumatic vise is a powerful clamping device developed for automated machining and mass production. Its built-in pneumatic-hydraulic booster system generates a strong and stable clamping force using standard factory air pressure. It is ideal for automated loading and unloading with robotic arms, making it an indispensable tool for building automated production lines and increasing efficiency.

Core Advantages

  • Powerful Boosted Clamping Force: Generates up to 4000 kgf, easily handling various heavy-duty cutting tasks.
  • Fast and Stable Actuation: Achieves rapid opening and closing in seconds, significantly reducing machining cycle time.
  • High Integrability: Links with machine tool's M-code via a solenoid valve for easy integration and unmanned operation.
  • Robust and Durable Construction: Made of high-tensile ductile iron (FCD60) with heat-treated surfaces for long-term accuracy.

Key Technical Specifications

Parameter Specification (Model: NPV-160)
Jaw Width160 mm
Max Opening300 mm
Clamping Force (at 6 bar)4000 kgf
Repeatability≤0.01 mm
ActuationPneumatic (Pneumatic-Hydraulic Booster)
Recommended Air Pressure5 - 7 bar
Body MaterialFCD60 High-Tensile Ductile Iron
Weight65 kg

How to Read These Specs for CNC & Automation

When you compare an air powered vise for CNC milling, the headline numbers (jaw width, opening, clamping force at 6 bar) are only the start. This quick reference links each spec to real outcomes in a robotic CNC cell—repeatability, safety, and stable workholding.

Spec Why it matters in production Practical check before you buy
Jaw width & max openingDefines the part envelope and how reliably a robot can load blanks without collision.Validate your largest blank + gripper clearance; confirm opening under your chosen jaw set.
Clamping force (at 6 bar)Controls vibration and part lift during high‑feed roughing, deep pockets, and interrupted cuts.Match force to your cutting plan; reserve margin for coolant lubrication and fixture stack‑ups.
Repeatability (≤0.01 mm)Key for automated re‑clamping, pallet swaps, and multi‑op processes where datums must hold.Ask about jaw seat design, locating keys, and how the vise handles chip contamination.
Pneumatic‑hydraulic boosterCombines fast pneumatic actuation with hydraulic locking for stable force over long unattended cycles.Confirm booster serviceability (seals/oil) and whether a clamp‑OK signal can be added.
Body stiffness (FCD60)A rigid body reduces jaw deflection, protecting concentricity and surface finish on hard materials.Check base flatness, keyway accuracy, and whether your machine table can support the mass.
Air pressure range (5–7 bar)A stable regulator and clean air prevent drift—critical for a pneumatic self‑centering vise in automation.Plan an FRL unit + gauge; add a pressure switch to stop the robot if pressure is out of spec.

Pneumatic-Hydraulic Booster Technology

The core of the NextasTech pneumatic vise is its innovative "pneumatic-to-hydraulic conversion" booster technology. Compressed air pushes a large-area piston, which pressurizes a small-area hydraulic chamber. According to Pascal's principle, this amplifies the air pressure by several tens of times, generating powerful hydraulic clamping force. This design combines the rapid response of pneumatics with the powerful locking of hydraulics, operating with only a standard air source and simplifying system configuration.

Designed for Harsh Environments

The NextasTech pneumatic vise features a fully sealed design to prevent contaminants like chips and coolant from entering the internal mechanism. The vise body, integrally cast from FCD60 high-tensile ductile iron, absorbs cutting vibrations, ensuring machining stability and a superior workpiece surface finish.

Flexible Installation and Application

The precision-ground base with standard keyways and mounting holes allows for quick, accurate installation on various machining center T-slot tables. It can also be combined with our zero-point clamping system to achieve even faster fixture changeovers, further enhancing production efficiency and flexibility.

Powerful and Versatile Applications

Automated Machining Cells

Perfect for robotic arm loading/unloading systems, enabling long periods of stable, unmanned production.

Mass Production of Parts

Provides consistent clamping in automotive and electronics, ensuring quality and shortening cycle times.

Horizontal Machining Centers

Ideal for pallet changers, allowing multiple workpieces to be machined in a single setup.

Heavy-Duty Cutting Applications

Securely holds workpieces under high-feed, deep-cut conditions, perfect for tasks like mold roughing.

Application Fit Matrix

Use this matrix to decide where a pneumatic‑hydraulic vise adds the most value—especially in lights‑out machining, palletized systems, and robot loading.

Scenario Why it fits Recommended add‑ons
Robot‑loaded VMC (high throughput)Fast clamp/unclamp reduces idle time and keeps cycle timing consistent.Clamp‑OK confirmation (pressure/position), hard jaws, chip‑blow air nozzle.
Palletized HMC / APC linesRepeatable locating supports multi‑op part families with minimal touch‑off.Zero‑point clamping plate, standardized locating keys, quick‑change jaw sets.
5‑axis / multi‑side machiningSelf‑centering workholding simplifies symmetric parts and helps keep the datum stable.Low‑profile jaws, soft jaws bored in place, collision‑safe jaw length limits.
High‑mix, short runsQuick changeovers + consistent clamping improves first‑part success rate.Pre‑machined soft‑jaw blanks, setup checklist, QR‑labeled jaw library.
Interrupted cutting / mold roughingStable force helps resist chatter during heavy cuts and step‑downs.Higher pressure within spec, rigid hard jaws, coolant‑resistant wipers.
Automotive & electronics mass productionPredictable clamping supports SPC and keeps dimensional drift under control.Pressure regulator with lock, periodic verification gauge, spare seal kit.

Selection & Automation Integration Guide

A practical checklist for choosing a pneumatic self‑centering vise and integrating it into robotic CNC cells, pallet systems, and high‑mix production—without sacrificing repeatability.

Need faster changeovers? Mount the vise on a zero‑point clamping plate or a pneumatic zero‑point plate to reduce setup time.
  • Part family & jaw strategy: match jaw width/opening to your parts; use hard jaws for repeatable clamping and soft jaws for custom profiles (bore in‑place for best concentricity).
  • Clamping force vs cutting plan: validate force requirements for high‑feed roughing, deep pockets, and interrupted cuts; consider the built‑in pneumatic‑hydraulic booster for stable force.
  • Repeatability targets: protect ≤0.01 mm repeatability by keeping jaw seats clean, controlling torque, and standardizing locating surfaces across pallets/fixtures.
  • Mounting & referencing: use keyways/bolt patterns for quick alignment; combine with palletized automation (HMC/APC) for lights‑out operation.
  • Automation I/O: design clamp/unclamp control with solenoid valves and add confirmation (pressure/position sensors) so the robot never loads on an unknown state.

Jaw Options & Part Strategy

Choose jaws based on how you want to locate the part (OD/ID, flats, or custom profile) and how often you will change part families.

Jaw type Best for Tip
Hard jawsRepeatable clamping in automation and pallet workKeep seats clean; use locating keys to protect ≤0.01 mm repeatability.
Soft jaws (bore in place)Custom profiles, thin walls, cosmetic surfacesBore at clamp pressure used in production to reduce spring‑back errors.
Serrated / grip jawsRough blanks and heavy roughingUse only where witness marks are acceptable; verify part pull‑out risk.
V‑block or prism jawsRound stock (shafts, bushings, cylinders)Pair with part‑present sensing for reliable robot loading.
Fixture jaws / nestsMulti‑part loading and takt‑time optimizationDesign for chip evacuation; avoid coolant pools that affect seating.

Automation I/O & Safety Signals

A robot should never load/unload against an unknown clamp state. These are common signals used with an automation‑ready pneumatic vise.

Signal / component Purpose Typical implementation
Clamp commandInitiates clamp cyclePLC output → solenoid valve (5/2 or 3/2), with exhaust silencer.
Unclamp commandOpens jaws for loadingSeparate solenoid channel; interlock with door/E‑stop.
Clamp‑OK confirmationPrevents cutting on partial clampPressure switch or position sensor wired into CNC/robot permissives.
Air pressure monitoringDetects regulator drift or supply lossRegulator + gauge; optional transducer for trend monitoring.
Part‑present sensingConfirms blank is seatedInductive/optical sensor or robot vision check before clamp.
Chip‑blow / seat cleaningProtects repeatability over long runsTimed air blast + coolant management to keep jaw seats clean.

Pneumatics, Setup & Maintenance

Stable air supply and basic housekeeping are what keep a pneumatic vise predictable in automation. Use this as a quick commissioning + upkeep checklist.

For process planning, see our guide: Pneumatic vise for CNC machining.
  • Air quality: use clean, dry, filtered air (FRL). Keep air supply consistent to avoid cycle‑to‑cycle variation.
  • Pressure setting: follow the recommended 5–7 bar range; place a regulator close to the machine to reduce pressure drop.
  • Hose routing: keep lines short, avoid leaks, and consider quick exhaust where faster actuation helps throughput.
  • Commissioning: run repeated clamp/unclamp cycles, verify jaw parallelism, and record clamp time as a baseline for future checks.
  • Routine care: remove chips/coolant from sealing areas, inspect wipers/seals, and periodically verify repeatability with a gauge block or reference part.

Maintenance Schedule (Quick Planner)

Simple, consistent checks keep a pneumatic‑hydraulic vise stable in unattended machining. Use this table as a shop‑floor routine.

Interval What to do Why it matters
Each shiftBlow off chips from jaw seats; quick visual check for leaks and loose fittings.Prevents seating errors that ruin repeatability and part datums.
WeeklyDrain FRL bowl; confirm regulator setpoint; verify clamp‑OK signal response.Stops pressure drift that can cause inconsistent clamping force.
MonthlyInspect jaw mounting faces; check keyways/bolts; clean exposed sliding surfaces.Reduces jaw tilt/deflection and protects surface finish.
QuarterlyVerify repeatability with a simple gauge part; review automation logs for alarms.Catches gradual wear before scrap accumulates in lights‑out runs.
AnnuallyPreventive seal inspection; refresh booster oil if your service plan calls for it.Extends service life and avoids sudden clamp‑force loss.
After a crashRecheck base flatness, jaw alignment, and sensor mounting; perform a clamp/unclamp test.Restores geometry and prevents hidden errors from propagating.

Real-World Case Studies

Frequently Asked Questions

What is High-Precision Pneumatic Vise and who is it for?
The High-Precision Pneumatic Vise is a powerful clamping device designed for automated CNC machining and mass production.
What are the key specifications of High-Precision Pneumatic Vise?
Jaw Width: 160 mm; Max Opening: 300 mm; Clamping Force (at 6 bar): 4000 kgf; Repeatability: ≤0.01 mm; Actuation: Pneumatic (Pneumatic-Hydraulic Booster); Recommended Air Pressure: 5 - 7 bar
Which machines or use cases is it compatible with?
It is compatible with CNC machining centers, milling machines, and can be integrated with ITS systems for automation.
How is it installed or mounted?
Installation is via standard keyways and mounting holes on T-slot tables. It also has pneumatic/hydraulic interfaces and locating pins for precise setup.
Where can I get CAD files or technical documentation?
If you need STEP/IGES or 2D drawings, please Contact us.
What are the advantages of your pneumatic vise compared to a traditional hydraulic vise?
Our main advantage is integration. Our pneumatic vise has a built-in 'pneumatic-to-hydraulic' booster, requiring only standard factory air pressure to generate up to 4000 kgf of powerful hydraulic clamping force. This simplifies system setup, eliminates the need for an external hydraulic unit, and allows for easy integration with automation lines and machine M-codes via a solenoid valve.
What is the repeatability of this vise?
The NPV-160 pneumatic vise achieves a repeatability of ≤0.01 mm. This is crucial for automated mass production that requires high consistency.
What is special about the FCD60 ductile iron body?
FCD60 is a high-tensile ductile iron. This material provides excellent rigidity and vibration-damping capabilities. During heavy-duty cutting, it effectively absorbs machining vibrations, ensuring stability, a superior workpiece surface finish, and extending the vise's long-term durability.
What air supply and control hardware do I need for automation?
Use clean, dry, filtered air (FRL) and keep pressure stable in the recommended 5–7 bar range. For robotic cells, drive clamp/unclamp via a solenoid valve (PLC/M‑code) and add confirmation using pressure or position sensors.
How do I choose jaws (hard jaws vs soft jaws) for repeatable setups?
Use hard jaws for repeatable production clamping and soft jaws when you need a custom profile. For best accuracy, machine soft jaws in‑place, keep jaw seats clean, and standardize jaw changeover torque and locating features.
Can I combine this pneumatic vise with a zero‑point system for fast changeovers?
Yes. Mount the vise on a zero‑point clamping plate or pallet to speed up fixture swaps and keep referencing consistent across machines—especially useful for HMC pallet systems and high‑mix production.
What maintenance helps keep ≤0.01 mm repeatability over time?
Keep chips/coolant away from sealing and seating surfaces, inspect wipers/seals regularly, and verify repeatability with a gauge block or reference part. Record baseline clamp time/pressure so you can spot drift early.

Resources & Downloads

Request 3D CAD Files

Contact us to get STEP files for your design and simulation needs.

Product Data & Evaluation Checklist

For automated clamping, validate clamp force consistency, booster behavior, and cycle stability over long runs.

Key specifications

Vise type Pneumatic vise with pneumatic-hydraulic booster (model dependent)
Clamping Consistent clamp force for repeat production
Automation fit Ready for robot/APC workflows with repeatable actuation
Accuracy goal Stable positioning suitable for production machining
Maintenance Serviceable seals; accessible air/hydraulic service points
Options Jaw sets, sensors, and custom mounting patterns

Tip: share your part material, machine model, and target takt time. We’ll propose the right configuration and measurable targets.

Compatibility & standards

  • Pairs with zero-point plates/pallets for fast automated changeovers.
  • Suitable for CNC lines requiring consistent clamp/unclamp cycles.
  • Sensor-ready options can provide clamp confirmation signals.

Measured outcomes (before → after)

  • Cycle time: less manual handling and fewer clamp adjustments.
  • Quality stability: reduced variation in clamping across shifts.
  • Reduced rework: fewer clamp-related surface/position deviations.

Workholding configuration

  • Define mounting: spigot standard or bolt pattern, plus clearance for air lines.
  • Jaw plan: soft jaws for delicate parts vs serrated jaws for heavy cuts.
  • Automation sequencing: clamp confirmation + safe release conditions.

Evidence & proof

  • Cycle test log/video showing repeated clamp/unclamp stability.
  • Clamp verification method (sample procedure) and inspection excerpt.
  • Photos of integration with pallets/plates and line setup.

Delivery & support

  • Commissioning support for booster tuning (where applicable).
  • Spare seals and preventive maintenance checklist for high-cycle production.
  • Optional acceptance video before shipment.

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