1. Compliant with ISO 21287 standard, featuring highly versatile mounting dimensions;
2. Thread-connected cylinder body with front/rear covers ensures structural integrity and maintenance convenience;
3. Precision-machined bore with hard anodizing treatment delivers exceptional wear resistance and extended service life;
4. Asymmetric bidirectional piston sealing configuration combines compact dimensions with integrated oil reservoir functionality;
5. Space-optimized design reduces installation footprint by 50% compared to ISO 15552 standard cylinders of equivalent bore size;
6. Triple-side sensor grooves along cylinder body facilitate flexible sensor mounting;
7. Integrated shock absorber pads effectively dampen residual energy from high-speed operation and mechanical rotation;
8. Comprehensive selection of standardized mounting accessories available.
Category: Adjustable Cylinder | Brand: AIRTAC | Series: ACEJ12
AirTAC ACEJ12 Adjustable Compact Cylinder ACEJ20X55-40B Technical Details
- Model: ACEJ20X55-40B (ACEJ Series)
- Type: Double-acting adjustable cushion cylinder
- Bore size: 20mm (ISO 6432 standard)
- Stroke: 55mm (±0.5mm tolerance)
- Operating pressure: 0.15–0.8 MPa
- Mounting style: B-type (Front flange with rectangular base)
- Port size: 1/8" NPT (M5 optional)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston rod material: Chrome-plated steel (S45C)
- Tube material: Anodized aluminum alloy
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Operating temperature: -20℃ to 80℃
- Built-in magnet: Yes (For magnetic sensor compatibility)
- Weight: 0.33 kg (±5%)
- Dimensions: 116mm(L) × 34mm(W) × 34mm(H) (Extended length)
- Retracted length: 61mm
- Rod thread: M6×1.0
- Lubrication: Pre-lubricated (Grease-free operation possible)
Ultra-compact ISO cylinder featuring precision-machined components and dual adjustable air cushions for controlled deceleration. The anodized body provides corrosion resistance in humid environments, while the chrome-plated rod ensures smooth operation. Designed for applications requiring space optimization without compromising stroke accuracy.
- PCB handling robots in electronics manufacturing
- Clamping mechanisms in CNC tool changers
- Precision door actuation in cleanroom equipment
- Label applicators in packaging lines
- Medical device positioning systems
| Property | Property Value |
|---|---|
| sku | ACEJ20X55-40B |
| Adjustable Stroke | <40mm> |
| 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 | M5×0.8 |
| Piston Rod Thread Type | External Thread |
| Magnet | Non-magnetic |
| Bore Diameter | <20mm> |
| Stroke | 55mm |
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.











