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 Blocking Cylinder TWQ40X20SK Technical Details
- Model: TWQ40X20SK
- Type: Double-acting with mechanical locking mechanism
- Bore size: 40mm
- Stroke: 20mm
- Mounting style: Standard square block with multiple mounting holes (M6 thread)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Temperature range: -20℃ to 80℃
- Seal material: NBR + Polyurethane composite
- Port size: PT1/8 (G1/8 optional)
- Piston rod material: Chrome-plated stainless steel (SUS304)
- Weight: 1.65kg ±2%
- Dimensions: 150mm(L) × 80mm(W) × 80mm(H) (at fully retracted position)
- Locking force: 850N max @ 0.5MPa
- Response time: ≤0.3s (locking/unlocking cycle)
High-precision blocking cylinder featuring instant mechanical locking through wedge mechanism, designed for precision positioning and load holding in automated systems. The hardened guide rails and dual-shaft design ensure zero rotation under lateral forces. Includes wear-resistant bronze bushings and IP54-rated dust protection.
- Pallet stop systems in conveyor lines
- Workpiece clamping in CNC rotary tables
- Position locking in robotic welding fixtures
- Safety interlocks in press machinery
- Vertical load holding in material handling
| Property | Property Value |
|---|---|
| sku | TWQ40X20SK |
| Port Size | PT1/8 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Self-locking Function | Non Self-locking |
| Stroke | <20mm> |
| Blocking Method | Lever 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.





