
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X250-100 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 integrates a 100 mm external adjuster to shorten the extend stroke on site. Four steel tie rods clamp the aluminum barrel to the covers, providing structural rigidity while maintaining dimensional interchangeability per the ISO 15552 mounting interface. The G1/2 port feeds the 32 mm piston rod, yielding a safe working load around 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
The nominal 250 mm stroke represents the maximum extension, but the external stop screw lets you fine-tune the usable extend length down to 150 mm without changing the cylinder itself. Adjustable 40 mm air cushions at both ends absorb kinetic energy near the end of travel. Note that this specific SKU lacks a magnet and cannot accept CMSG, DMSG or EMSG sensors; adding the -S variant enables that sensing capability.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X250-100 |
|---|---|
| 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.
Allows operators to dial in the exact 150 to 250 mm extend position for inserting bearings without swapping the entire actuator.
Adjusts the extend stroke on-site to accommodate different package sizes on a sorting line, ensuring precise physical contact.
Provides a robust 6136 N physical stop for pallets, with the 100 mm window allowing quick height or depth adjustments.
When sizing this unit, the neighboring 160 mm bore jumps significantly to 10053 N of push at 0.5 MPa, while smaller ISO 15552 units offer less power. The 125 mm bore sits at the lower edge of this large-bore family, making it ideal when you need 6136 N but want to avoid the bulk of a 160 mm body. The 100 mm adjustable window is particularly useful for sharing a single spare cylinder across multiple stroke variants or fine-tuning the end position on-site. SGCJ mounting options include FA, LB, TC, FTC, TCM1 and TCM2. Because this is a non-magnetized SKU, it cannot accept position sensors. For any stroke length at or above 500 mm, always use a guide rail to prevent side-load damage to the rod seals.
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 force is 1251 kgf at 1.0 MPa. This 125 mm bore unit uses a G1/2 air port and features a 32 mm rod with an M27x2.0 thread.
The nominal 250 mm stroke is the maximum extension. An external stop screw allows you to shorten the extend stroke by up to 100 mm on-site, giving a usable extend range of 150 to 250 mm. The retract end is fixed. This mechanism only sets the end position; it does not lock the load. To hold a load on air loss, you must use an external rod lock or a pilot-operated check valve.
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.