Airtac PTBR Single Acting Square Head Compact Cylinder PTBR8X20SR
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 PTBR8X20SR Single-Acting Square Head Pen-Type Cylinder Specifications
- Model: PTBR8X20SR
- Type: Single-acting spring return (piston rod type)
- Bore size: 8mm
- Stroke: 20mm
- Mounting style: Square head with 4xM3 threaded holes
- Port size: M5x0.8 (standard) / PT1/8 (optional)
- Operating pressure: 0.15–0.8 MPa
- Cushioning: Adjustable rubber bumper
- Piston material: Aluminum alloy with hard anodization
- Rod material: Stainless steel SUS304
- Seal material: NBR (nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 0.12kg
- Dimensions: 60mm(L) × 20mm(W) × 20mm(H)
- Rod thread: M4x0.7 external thread (end)
- Max theoretical thrust: 35.2N at 0.6MPa
- Lubrication: Pre-lubricated (grease-packed)
Ultra-compact pen-style cylinder optimized for space-constrained linear motion applications. Features precision-ground rod guide for smooth operation and anti-rotation square body design for direct tooling attachment. Requires dry filtered air (40μm+) with ISO 8573-1:2010 Class 4.3.2 air quality.
- PCB component insertion machines
- Medical device sample handling arms
- Semiconductor wafer positioning systems
- Desktop automation for light-duty clamping
- Optical lens alignment mechanisms
Installation note:
Mount using 2xM3 screws (max 0.49Nm torque). For vertical installations,
add a mechanical stopper to prevent over-rotation. Lubricate every 500,000
cycles using ISO VG32 turbine oil. Avoid side load exceeding 1.5N.
| Property | Property Value |
|---|---|
| sku | PTBR8X20SR |
| 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 | <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.