2、Reinforced piston rod design significantly enhances cylinder's resistance to lateral bending moments;
3、Adjustable mounting height with multiple rod end configurations, optional oil-cushioned shock absorber ensures superior damping performance;
4、Lever-type roller mechanism integrated with self-locking device prevents arm rebound-induced pushback on blocked objects;
5、Multiple series and specifications available to meet diverse industrial automation requirements.
Category: Blocking Cylinder | Brand: AIRTAC | Series: TWG
AirTAC TWG Series Stopper Cylinder TWG40X25SR Technical Details
- Model: TWG40X25SR
- Type: Compact double-acting stopper cylinder with spring return
- Bore size: 40mm (ISO 6432 standard)
- Stroke: 25mm ±0.5mm
- Operating pressure: 0.1–1.0 MPa
- Piston rod material: Chrome-plated steel (Cr-Mo alloy)
- Cylinder tube: Hard anodized aluminum alloy
- Seal material: NBR (Nitrile) with wear-resistant ring
- Temperature range: -20℃ to 80℃ (dry air required below 0℃)
- Mounting type: Front flange (MF1) with 4×M5 threaded holes
- Cushioning: Adjustable pneumatic cushion (both ends)
- Weight: 1.25kg ±3% (with standard accessories)
- Dimensions:
- Body length: 102mm
- Width (flange to rod end): 56mm
- Height (mounting surface to top): 40mm
- Rod diameter: 16mm
High-precision stopper cylinder featuring dual-piston design for enhanced stopping force (up to 490N at 0.6MPa). The TWG40X25SR incorporates a unique wedge-shaped locking mechanism that achieves ±0.2mm repeat positioning accuracy. Anti-rotation rod design ensures stable vertical operation, with IP54-rated protection against particulate ingress.
- Precision workpiece positioning in CNC loading systems
- Pallet locking in automated assembly lines
- Safety interlock mechanisms for robotic workcells
- Conveyor flow control in packaging machinery
- Fixture clamping in automotive welding stations
- Max stopping speed: 1.5m/s
- Static friction: ≤2.5N
- Dynamic friction: ≤1.8N
- Lifespan: 5,000km (maintenance-free under standard conditions)
| Property | Property Value |
|---|---|
| sku | TWG40X25SR |
| Port Size | PT1/8 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Self-locking Function | Non Self-locking |
| Stroke | <25 mm> |
| Blocking Method | Roller Type |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.



