Airtac TWQ Stopper Cylinder TWQ50X20-B
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 TWQ50X20-B Stopper Cylinder Technical Specifications
- Model: TWQ50X20-B
- Type: Double-acting compact stopper cylinder
- Bore size: Ø50 mm
- Stroke: 20 mm (±1mm tolerance)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston speed: 50–750 mm/s
- Mounting style: ISO 15552 standard flange (MF1 type)
- Port size: 1/4" NPT (G1/8 optional)
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Ambient temperature: -20℃ to +80℃
- Weight: 2.8 kg (without accessories)
- Dimensions: 150mm(L) × 80mm(W) × 80mm(H) (full retracted length)
- Rod thread: M10×1.25 (external)
- Repeat accuracy: ±0.5mm
- Protection class: IP54 (standard sealing)
High-precision stopper cylinder with integrated shock absorption, designed for repetitive positioning tasks requiring abrupt stopping force. Features chrome-plated piston rod with dust wiper and auto-lubricating bushings. Requires 5μm filtered compressed air with ISO 8573-1:2010 class 4.4.3 air quality.
- Pallet stop systems in conveyor lines
- Workpiece positioning in CNC machine loaders
- Carton alignment in packaging machinery
- Robotic arm end-stop positioning
- Precision jig clamping in automotive welding
Installation guidelines:
Mount on rigid flat surface with M8 mounting bolts (ISO 4762) torqued to 22 N·m.
Maintain 0.5–1mm clearance between stopper face and target surface. Lubricate
with ISO VG32 hydraulic oil during initial installation.
Critical note:
Avoid side-load exceeding 50N. For vertical mounting applications,
install mechanical lock nut on piston rod thread (M10×1.25).
| Property | Property Value |
|---|---|
| sku | TWQ50X20-B |
| Port Size | PT1/8 |
| Magnet | Non-magnetic |
| Bore Diameter | <50mm> |
| 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.