1. Compliant with JIS standards;
2. Reinforced piston rod design effectively enhances impact resistance;
3. Fixed mounting height with multiple rod end configurations. Hydraulic shock absorber option delivers superior cushioning performance;
4. Lever-type roller mechanism incorporates self-locking device to prevent rebound pushback from blocked objects;
5. Comprehensive series and specifications available for diverse application needs.
Category: Stopper Cylinder | Brand: AIRTAC | Series: TWQ
AirTAC TWQ Series Stopper Cylinder TWQ40X20SC Technical Specifications
- Model: TWQ40X20SC
- Type: Double-acting stopper cylinder with mechanical lock
- Bore size: 40mm
- Stroke: 20mm (±1mm tolerance)
- Operating pressure: 0.1-0.8 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Foot-mounted (MF1) / Front flange (optional)
- Port size: 1/4" NPT (G1/4 optional)
- Operating temperature: -20℃ to 80℃
- Piston rod material: Chrome-plated stainless steel (SUS304)
- Cylinder tube: Hard-anodized aluminum alloy
- Seal material: NBR (standard) / PU (high-temperature option)
- Protection rating: IP67 (wipers included)
- Weight: 2.1kg (excluding accessories)
- Dimensions: 200mm(L) × 40mm(W) × 40mm(H) (retracted position)
- Extended length: 220mm (full stroke)
High-precision stopper cylinder with integrated mechanical locking mechanism, engineered for precision positioning and workpiece retention in automated systems. Features triple sealing structure for leak-proof operation and wear-resistant guide bushings. The hardened piston rod (HRC 45-50) ensures durability in high-cycle applications.
- Pallet stop systems in assembly lines
- Precision fixturing for CNC machining centers
- Position verification in robotic welding cells
- Material handling gate control
- Elevator safety locking mechanisms
| Property | Property Value |
|---|---|
| sku | TWQ40X20SC |
| Port Size | PT1/8 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Self-locking Function | Non Self-locking |
| Stroke | <20mm> |
| Blocking Method | Round 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.





