
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X250-100S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 250mm 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.
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 aluminium barrel for high structural rigidity. The built-in magnet supports CMSG, DMSG and EMSG sensors for precise position detection, while the G1/2 port handles the 30-500 mm/s speed range. It handles a safe working load of roughly 3682 N, which translates to lifting about 313 kg vertically with a 2:1 margin.
The -100 code means an external adjuster can shorten the extend stroke on site by up to 100 mm, dropping the usable forward travel from the 250 mm maximum down to 150 mm without changing the cylinder itself. The retract end remains fixed, and the two-way piston seal ensures reliable operation. Standard TPU seals offer long life from -20 to +70 C, though a Viton H option extends this to 150 C.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X250-100S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 250 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).
| 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.
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×250 | 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.
Dial in the exact 150 to 250 mm extend contact point on a light-duty assembly press without swapping cylinders.
Adjust the stopper block position on the fly to handle different product lengths on a shared conveyor line.
Fine-tune the vertical lift height for varying pallet footprints while maintaining a safe 313 kg lifting margin.
When sizing this unit, the neighbouring bores frame the choice: stepping down is not an option below 125 mm in the SGCJ family, while stepping up to a 160 mm bore raises the 0.5 MPa push force to 10053 N. The adjustable stroke is invaluable when you need to fine-tune an end position on the factory floor or want a single shared spare across several stroke variants. You can mount it via FA, LB, TC, FTC, TCM1 or TCM2 brackets. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG or EMSG switches. For any stroke at or over 500 mm, always use a guide rail to prevent side-load damage to the rod.
Quick checklist
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 is 1251 kgf at 1.0 MPa. The air port is G1/2.
An external stop screw lets you shorten the extend stroke by up to 100 mm on site, giving a usable forward travel range of 150 to 250 mm. The nominal 250 mm stroke is the maximum, and the retract end is fixed. This mechanism sets the end position and is not a load lock.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.