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 TWQ50X20SR Technical Details
- Model: TWQ50X20SR
- Type: Compact profile double-acting stopper cylinder
- Bore size: Ø50 mm
- Stroke: 20 mm (±1 mm standard tolerance)
- Operating pressure: 0.1-0.8 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Operation mode: Dual air port control (Rc1/8 thread)
- Port size: M5x0.8 (standard) / NPT1/8 optional
- Temperature range: -20℃ to 80℃ (with NBR seals)
- Material: Aluminum alloy barrel / Chrome-plated piston rod
- Seal type: High-wear resistance NBR compound
- Protection class: IP65 (standard dust/water resistance)
- Repeat positioning accuracy: ±0.1 mm
- Weight: 1.8 kg (excluding accessories)
- Dimensions: 140mm(L) × 50mm(W) × 50mm(H) (stroke extended)
Precision-engineered stopper cylinder with integrated T-slot mounting for rapid installation. Features anti-rotation mechanism and dual magnetic sensor slots (M5x0.5 thread) for position feedback. The hardened stainless steel guide rod ensures ≤0.05mm wobble tolerance under maximum lateral load (150N).
- Conveyor line product positioning in packaging systems
- Workpiece clamping in CNC rotary tables
- PCB board retention in SMT assembly machines
- Pallet locking in automated storage systems
- Tooling fixture positioning in automotive welding lines
- 0.3 MPa: 50-200 mm/s (recommended for precision stops)
- 0.5 MPa: 200-500 mm/s (general operation)
- 0.7 MPa: 500-800 mm/s (high-speed applications)
| Property | Property Value |
|---|---|
| sku | TWQ50X20SR |
| Port Size | PT1/8 |
| Magnet | S-Magnetic |
| Bore Diameter | <50mm> |
| Self-locking Function | Non Self-locking |
| Stroke | <20mm> |
| 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.





