2. Features profiled bidirectional sealing structure for piston with compact dimensions and integrated oil reservoir;
3. JSI series adopts aluminum tube with internal cross rib reinforcement (rodless design), offering enhanced corrosion resistance;
4. Compact length compared to ISO15552 standard cylinders of equivalent bore size;
5. Smooth cushioning adjustment mechanism for stable operation;
6. Available in multiple configurations with comprehensive cylinder mounting accessories.
Category: Standard Cylinders | Brand: AIRTAC | Series: JSIJ100~125
AirTAC JSIJ125X300-40 Adjustable Cylinder Specifications
- Model Series: JSIJ100~125 (JSIJ125X300-40 specific)
- Type: Double-acting adjustable stroke cylinder with magnetic piston
- Bore size: 125mm
- Stroke: 300mm (adjustable through external stopper)
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion at both ends
- Mounting style: Basic type (multiple options available: FA/FC/MF)
- Port size: G1/2 (BSPP thread)
- Piston material: High-grade aluminum alloy with hard anodizing
- Rod material: Chrome-plated steel (Cr-Mo steel base)
- Seal type: NBR + PU combination seals
- IP rating: IP54 (standard dust/moisture protection)
- Weight: 6.8kg ±2% (without accessories)
- Dimensions:
- Extended length: 648mm (stroke 300mm)
- Retracted length: 348mm
- Body diameter: 125mm
- Mounting base width: 160mm
- Rod end thread: M24×1.5
- Lubrication: Pre-lubricated (recommended relubrication every 500km operation)
Heavy-duty adjustable stroke cylinder featuring precision-machined wear bands for reduced friction. The JSIJ125X300-40 combines dual adjustable mechanical stoppers with pneumatic cushioning, enabling millimeter-level positioning accuracy. Its corrosion-resistant construction supports operation in humid environments when paired with proper air treatment.
- Variable height positioning in automotive assembly jigs
- Press machine force adjustment systems
- Packaging line product height compensation
- Plastic injection molding ejector mechanisms
- Agricultural equipment with terrain-adaptive components
| Property | Property Value |
|---|---|
| sku | JSIJ125X300-40 |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT 1/2 |
| Magnet | Non-magnetic |
| Cushion Stroke | 33mm |
| Bore Diameter | 125mm |
| Stroke | 300mm |
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.







