Airtac SILF Front Locking Air Cylinder SIF40X250
2. Unlocking methods: Featuring automatic and manual unlocking operation modes.
Category: Locking Cylinders , Brand: AIRTAC , Series: SILF
AirTAC SILF Front Lock Cylinder SIF40X250 Technical Specifications
- Model: SILF SIF40X250
- Type: Double-acting cylinder with mechanical locking mechanism
- Bore size: 40mm
- Stroke: 250mm
- Operating pressure: 0.1–0.8 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Front flange (ISO 15552 standard), optional rear flange/bracket
- Port size: 1/4" NPT (G1/8 optional)
- Locking force: 1,500N (at 0.5 MPa)
- Lock release pressure: ≥0.3 MPa
- Piston speed: 50–800 mm/s
- Seal material: NBR (nitrile rubber)
- Temperature range: -20℃ to +80℃
- Weight: 1.85 kg (excluding accessories)
- Dimensions: 350mm(L) × 48mm(W) × 48mm(H) (fully retracted)
- Rod thread: M12×1.25
- Protection rating: IP54 (standard), IP67 (optional wiper upgrade)
- Service life: 5,000 km (under standard operating conditions)
High-precision locking cylinder featuring fail-safe mechanical position retention. The dual-chamber locking mechanism engages automatically at stroke ends, maintaining position without continuous air supply. Enhanced wear resistance through chrome-plated piston rod (HCP treatment) and aluminum alloy barrel with oxidation protection. Requires 5μm filtered air with ISO 8573-1:2010 class 4.4.3 cleanliness.
- Vertical lifting mechanisms requiring position hold (elevator safety brakes)
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- Plastic injection molding machine core pulls
Installation guidelines:
Lubricate with ISO VG32 hydraulic oil before initial use.
Maintain ≥15mm clearance around cylinder body for heat dissipation.
Locking mechanism requires weekly manual override test for maintenance.
Maximum side load: 30N (use guided carriage for heavy side loads).
| Property | Property Value |
|---|---|
| sku | SIF40X250 |
| 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℃ to 80℃ Speed Range: 30-800 mm/s |
| Port Size | PT1/4 |
| Magnet | Non-magnetic |
| Bore Diameter | <40mm> |
| Stroke | <250MM> → <250mm> |
| Lock Position | Front Cover with Lock |
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.