
2. SG series adopts dual Y-type unidirectional piston seals with self-compensating design, delivering extended service life and low starting pressure. SGC series features space-saving asymmetric bidirectional seals with oil reservoir functionality;
3. SG series utilizes steel cylinder construction with exceptional impact resistance;
4. SGC series employs aluminum cylinder tubes compatible with optional magnetic piston position sensing (not available for SG series);
5. Precision adjustable pneumatic cushioning mechanism ensures smooth deceleration;
6. Comprehensive range of bore sizes and mounting accessories for flexible system integration;
7. High-temperature resistant seals enable reliable operation from 0°C to 150°C.
Category: Standard Cylinders | Brand: AirTAC | Series: SGJ Adjustable Steel Cylinder Series
AirTAC SGJ Series Steel Pipe Adjustable Cylinder SGJ125X700-20 Technical Specifications
- Model: SGJ125X700-20
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø125mm (±0.5mm tolerance)
- Stroke: 700mm (adjustable within 0-700mm)
- Operating pressure: 0.05–0.9 MPa
- Port size: G3/4 (ISO 228 standard)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston speed: 50–800 mm/s (lubricated condition)
- Ambient temperature: -20℃ to +80℃
- Mounting: Basic type (MF1) / Foot mounting (MF2 optional)
- Material: Cold drawn steel tube (STKM13A), aluminum end caps
- Seals: NBR (standard) / PU (optional)
- Weight: 21.5kg (dry, without accessories)
- Dimensions: 900mm(L) × 160mm(W) × 160mm(H) (full extension)
- ISO standard: 15552 (formerly ISO 6431)
- Protection class: IP40 (standard) / IP65 (wipers optional)
Heavy-duty steel cylinder with precision-ground inner surface and external stroke adjustment mechanism. Features dual adjustable pneumatic cushions for smooth deceleration and impact reduction at stroke ends. The chrome-plated piston rod (HCP treatment) ensures corrosion resistance in humid environments.
- Plastic injection molding machine ejectors
- Automotive welding fixture positioning
- Paper processing equipment actuators
- Heavy material handling systems
- Press brake tooling adjustment mechanisms
 Installation guidelines: 
            Use M12 mounting bolts (grade 8.8 or higher) with 80-100Nm torque. 
            Maintain 0.5mm minimum alignment tolerance between rod and load. 
            Lubricate with ISO VG32 hydraulic oil (1-2 drops per port before operation).
 Installation guidelines: 
            Use M12 mounting bolts (grade 8.8 or higher) with 80-100Nm torque. 
            Maintain 0.5mm minimum alignment tolerance between rod and load. 
            Lubricate with ISO VG32 hydraulic oil (1-2 drops per port before operation).
         Critical note: 
            Maximum side load capacity 850N (parallel) / 350N (perpendicular). 
            For vertical mounting, always install anti-drop safety locknuts (ASJ-125 accessory recommended).
 Critical note: 
            Maximum side load capacity 850N (parallel) / 350N (perpendicular). 
            For vertical mounting, always install anti-drop safety locknuts (ASJ-125 accessory recommended).
        | Property | Property Value | 
|---|---|
| sku | SGJ125X700-20 | 
| Adjustable Stroke | <20mm> | 
| 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 70°C Speed Range: 30 to 500 mm/s | 
| Port Size | PT 1/2 | 
| Cushion Stroke | <40mm> | 
| Bore Diameter | 125mm | 
| Stroke | 700mm | 
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.
 
              