Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 140mm stroke, G1/2 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ125 mm
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses four steel rods to clamp its aluminum barrel for heavy-duty rigidity. The built-in piston magnet supports CMSG, DMSG and EMSG switches for exact position sensing, while the G1/2 port manages the 30-500 mm/s speed range.
The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, meaning usable extend travel is 90-140 mm without changing the cylinder itself. This on-site end-position tuning yields a safe working load of about 3682 N, or roughly 313 kg lifted vertically with a 2:1 margin. The retract end remains fixed, and the adjustable air cushions at both ends purely decelerate the piston rather than holding the load.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 140 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×140 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S Is Used
Press Fit Tuning
Dial in the exact 90-140 mm extend position on-site to seat bearings without overstressing the fixture.
Divertor Gate Stop
Adjust the extend stroke by up to 50 mm to alter the diversion angle for changing package sizes.
Pallet Positioning
Use the CMSG sensor and the external stop screw to set precise pallet push-off distances.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S the Right Cylinder?
When sizing this 125 mm bore, the neighbouring 160 mm bore jumps to 10053 N of push at 0.5 MPa, whereas stepping down drops you out of the large-bore ISO 15552 class entirely. The 50 mm adjustable window is highly useful when you need to fine-tune end positions across multiple shared spares or dial in a precise stop. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. The -S suffix means the magnet is already present for sensors. Because the nominal stroke is only 140 mm, side-load guide requirements are minimal compared to longer strokes.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X140-50S FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The nominal 140 mm extend stroke is the maximum. An external adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable extend range of 90-140 mm. The retract end is fixed, and this stop mechanism does not hold the load without live air.
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