2. Features a compact miniaturized design with minimized dimensions and lightweight construction
3. Precision-guided piston rod with self-lubricating guide bearings requiring no additional lubrication
4. Front cover integrates mounting threads for direct installation without auxiliary accessories
5. Stainless steel piston rod and cylinder barrel ensure corrosion resistance in mildly aggressive environments
6. Optimized for high-frequency operations with rapid response from small bore configuration
Category: Pen Type Cylinders | Brand: AIRTAC | Series: PTBR
AirTAC PTBR8X30SR Single-Acting Square Head Pen-Type Cylinder Specifications
- Model: PTBR8X30SR
- Type: Single-acting spring return (piston rod type)
- Bore size: 8mm
- Stroke: 30mm (±1mm tolerance)
- Operation: Air to port pushes piston outward, spring returns
- Operating pressure: 0.15–0.8 MPa
- Port size: PT1/8 (G1/8 optional)
- Cushioning: Rubber pad buffer
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to 80℃ (operating), -30℃ to 90℃ (storage)
- Mounting: 2x M3 threaded holes (16mm spacing)
- Weight: 0.12kg ±5%
- Dimensions: 78mm(L) × 20mm(W) × 20mm(H)
- Rod end: M5x0.8 external thread
- Max piston speed: 500mm/s
- Lubrication: Pre-lubricated (ISO VG32 equivalent)
Ultra-compact square-profile cylinder designed for precision linear motion in confined spaces. Features chrome-plated piston rod (HRC45 hardness) and anodized aluminum barrel for corrosion resistance. The pen-type design minimizes rotational movement during operation, ideal for applications requiring straight-line actuation with minimal footprint.
- Precision alignment mechanisms in semiconductor equipment
- Medical device component positioning
- 3D printer nozzle control systems
- Compact clamping fixtures in CNC automation
- Laboratory sample handling robots
| Property | Property Value |
|---|---|
| sku | PTBR8X30SR |
| 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 | 30mm |
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.



