2. Miniature square-body design with compact structure, reduced footprint, and lightweight construction
3. High-precision piston rod guidance featuring self-lubricated bearings for maintenance-free operation
4. Integrated mounting threads on front cover enable direct installation without auxiliary accessories
5. Stainless steel piston rod and cylinder construction ensures corrosion resistance in harsh environments
6. Optimized small bore configuration delivers rapid response, suitable for high-frequency cycling applications
Category: Compact Cylinders | Brand: AIRTAC | Series: PSBR Single-Acting Square-body Miniature Cylinders
AirTAC PSBR8X40SR Single-Acting Square Head Compact Cylinder Specifications
- Model: PSBR8X40SR
- Type: Single-acting spring return (push type)
- Bore size: 8mm
- Stroke: 40mm (±1mm tolerance)
- Operating pressure: 0.15–0.8 MPa
- Medium temperature: -20℃ to 80℃ (NBR seals)
- Cushioning: Rubber buffer
- Mounting: Square head side mounting
- Port size: M5x0.8 (dual ports)
- Material:
- Cylinder tube: Stainless steel (SUS304)
- Piston rod: Stainless steel (SUS304)
- End cover: Aluminum alloy (black anodized)
- Weight: 0.12kg (excluding accessories)
- Dimensions:
- Length: 76mm (full extension: 76mm + 40mm stroke)
- Width: 20mm (square head dimension)
- Height: 20mm (square head dimension)
- Rod thread: M4x0.7 (external)
- Protection rating: IP57 (dust protected & limited water immersion)
Ultra-compact square body design optimized for space-constrained automation systems. Features corrosion-resistant stainless steel construction with dual anti-rotation flats for stable mounting. Spring return mechanism provides fail-safe retraction with ≤0.8MPa air consumption per cycle. Requires 5μm filtered dry air with ISO 8573-1:2010 class 3.4.2 air quality.
- PCB board clamping in electronics assembly
- Precision sample positioning in medical analyzers
- Miniature part ejection in micro-molding machines
- Optical lens alignment mechanisms
- Laboratory automation tool changers
| Property | Property Value |
|---|---|
| sku | PSBR8X40SR |
| Rear Cover Type | Axial Port Type |
| 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: 50-800mm/s |
| Port Size | M5×0.8 |
| Magnet | S-Magnetic |
| Cushion Type | Bumper Pad |
| Bore Diameter | <8mm> |
| Stroke | <40mm> |
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.









