1. Compliant with JIS (Japanese Industrial Standards) specifications;
2. Features C-shaped retaining ring for cylinder body and end cover fixation, ensuring compactness and reliability;
3. Precision-machined bore with hard anodized treatment for enhanced wear resistance and durability;
4. Asymmetric bidirectional sealing structure on piston for compact dimensions and integrated oil storage capability;
5. Space-saving profile design to optimize installation space utilization;
6. Built-in sensor grooves along the cylinder periphery for effortless sensor integration.
Category: Slim Cylinder , Brand: AIRTAC , Series: ACQ125
AirTAC ACQ125X20S Compact Cylinder Specifications
- Model: ACQ125X20S
- Type: ISO 21287-compliant compact cylinder (single-acting spring return)
- Bore size: 125mm (4.92")
- Stroke: 20mm (0.79")
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Fixed rubber buffer + adjustable shock absorber
- Temperature range: -20℃ to 80℃
- Port size: G1/8 (NPT1/8 optional)
- Mounting: ISO 15552 standard front flange with 4×M6 threaded holes
- Material: Aluminum alloy barrel, hard-anodized piston rod (Cr-Mo steel)
- Seals: NBR standard (FKM available for high-temp variants)
- Weight: 2.85 kg (6.28 lbs)
- Dimensions: 171mm(L) × 125mm(W) × 136mm(H)
- Piston rod thread: M16×1.5 (external)
- Max theoretical force: 1,227N @ 0.7MPa
- Speed range: 50–750 mm/s (lubricated)
Ultra-flat profile cylinder optimized for space-constrained automation systems. Features dual anti-rotation guides (keyway & pin) for precise linear motion, ideal for vertical mounting applications. Pre-lubricated with food-grade grease (NSF H1 compliant option). Integrated magnet slot for position sensing compatibility.
- PCB clamping in semiconductor manufacturing
- Tooling plate positioning in CNC pallet changers
- Vertical lift mechanisms for robotic packaging cells
- Medical device assembly line actuators
- High-cycle press brake tooling systems
| Property | Property Value |
|---|---|
| sku | ACQ125X20S |
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature: -20°C to 70°C Speed Range: 30 to 500 mm/s |
| Port Size | PT3/8 |
| Piston Rod Thread Type | Internal Thread |
| Magnet | S-Magnetic |
| Cushion Type | Bumper Pad |
| Bore Diameter | 125mm |
| Stroke | <20mm> |
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.



