Airtac SI125 Standard Cylinder SI125X303SN
2. Piston features bidirectional Y-seal structure with cushioning function, offering extended service life and low friction resistance;
3. Aluminum barrel with cruciform reinforcement and black-anodized piston rod for enhanced corrosion resistance;
4. Precision machined cylinder surface ensures smooth operation;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AIRTAC | Series: SI125
AirTAC SI125X303SN Standard Cylinder Technical Specifications
- Model: SI125X303SN
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: Ø125 mm (±0.05mm tolerance)
- Stroke: 300 mm (adjustable cushioning)
- Operating pressure: 0.15–1.0 MPa (1.5–10 bar)
- Cushioning type: External adjustable rubber buffer + internal air cushion
- Operating temperature: -20℃ to +80℃
- Port size: G1/2 (BSPP thread)
- Piston rod thread: M24×1.5 external thread (L=30mm)
- Material:
- Tube: Hard anodized aluminum alloy
- Piston rod: Chrome-plated 45# steel
- End caps: Cast aluminum alloy
- Weight: 12.7 kg (without accessories)
- Dimensions:
- Length: 615 mm (full extension)
- Width: 160 mm (including mounting brackets)
- Height: 143 mm (barrel diameter + mounting protrusions)
- Seal material: High-wear resistance NBR + PU combination
- Lubrication: Pre-lubricated (Grease-free operation possible)
- Protection rating: IP54 (standard wipers)
- Mounting options: Basic type (MF1), front flange (MF2), rear flange (MF3), trunnion (MP4)
High-torque industrial cylinder designed for heavy-duty automation applications. Features dual cushioning system with 0-10mm adjustable stroke end dampers and corrosion-resistant construction. The oversized piston diameter (125mm) delivers 12,272N thrust force at 0.8MPa (calculated: 125²×π/4×0.8). Requires 40μm filtered compressed air with ISO 8573-1:2010 Class 3.4.2 air quality.
- Automotive press line material handling
- Steel coil positioning in rolling mills
- Plastic injection molding machine ejectors
- Heavy conveyor gate actuation
- Paper mill roller compression systems
Installation requirements:
Maintain 0.05mm/m alignment tolerance during mounting. For vertical installations exceeding 45° angle,
use mandatory guide mechanisms. Allow 15% extra stroke length for cushioning adjustment.
- Relubrication interval: 5 million cycles (or 12 months)
- Wiper seal replacement: 10 million cycles
- Full overhaul recommended after 50 million cycles
| Property | Property Value |
|---|---|
| sku | SI125X303SN |
| Seal Material | NBR |
| 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 80°C Speed Range: 30-500 mm/s |
| Port Size | PT 1/2 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 303mm |
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.