Airtac TWQ Stopper Cylinder TWQ40X20SB
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 TWQ40X20SB Technical Details
- Model: TWQ40X20SB
- Type: Compact profile stopper cylinder with built-in shock absorber
- Bore size: 40mm
- Stroke: 20mm (±1mm tolerance)
- Operating pressure: 0.1–0.8 MPa (14.5–116 PSI)
- Piston speed: 50–800 mm/s (with cushioning)
- Ambient temperature: -20℃ to 80℃ (NBR seals)
- Mounting style: Dual side mounting slots with M6 threaded holes
- Cushioning: Adjustable rubber buffer + polyurethane shock pad
- Rod end: M10×1.25 external thread
- Port size: G1/8 (ISO228 standard)
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Weight: 1.15 kg (with standard accessories)
- Dimensions: 112mm(L) × 48mm(W) × 48mm(H) (retracted position)
- Repeat positioning accuracy: ±0.3mm
- Protection class: IP54 (standard), IP67 (optional wiper upgrade)
High-precision stopper cylinder designed for precision part positioning and mechanical interference applications. Features dual-stage shock absorption system with 30% greater impact energy absorption compared to standard models. The anodized barrel surface resists chemical corrosion in harsh environments.
- Automated conveyor line workpiece stoppers
- Robotic welding fixture positioning
- CNC machine tool safety interlocks
- Packaging machine product counters
- Electronic component insertion force control
Installation recommendation:
Maintain 0.5–1mm clearance between stopper face and target surface during alignment.
Lubricate with ISO VG32 hydraulic oil through built-in grease nipple every 50,000 cycles.
| Property | Property Value |
|---|---|
| sku | TWQ40X20SB |
| Port Size | PT1/8 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Self-locking Function | Non Self-locking |
| Stroke | <20mm> |
| Blocking Method | Flat Cylinder |
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.