
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X1000-40 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 1000mm 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 40 mm external adjuster to shorten the extend stroke on-site. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, while the two-way piston seal ensures reliable double-acting single-rod operation. The G1/2 port matches the 125 mm bore standard. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom brackets.
The adjustable mechanism lets you fine-tune the end position without changing the cylinder, yielding a usable extend range of 960-1000 mm from the 1000 mm nominal maximum. It handles a safe working load of about 3682 N, which translates to lifting roughly 313 kg vertically with a 2:1 margin. Standard TPU seals operate from -20 to +70 C, though a Viton H option extends this to 0-150 C. Note that this specific SKU lacks the -S magnet and cannot accept CMSG, DMSG, or EMSG sensors.
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X1000-40 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 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). |
| ×1000 | 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.
Pushes heavy pallets along a 1000 mm conveyor, using the 40 mm external adjuster to dial in the exact push-off distance without relocating the cylinder.
Applies up to 8590 N of downward clamping force at 0.7 MPa, fine-tuning the bottom stop position on-site to accommodate different material thicknesses.
Actuates a heavy routing gate at the end of a sorting line, adjusting the extend reach by up to 40 mm to handle varying box dimensions.
When sizing this 125 mm bore unit against its neighbors, stepping down is not an option as it is the smallest large-bore SGCJ size, delivering 6136 N push and 5734 N pull at 0.5 MPa. If you need substantially more power, the 160 mm bore provides 10053 N push at the same pressure. The 40 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or dialing in exact end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. Because this is a 1000 mm long stroke, you must use external guides to prevent rod bending and manage side loads. Remember that without the -S suffix, magnetic sensors cannot be fitted.
Quick checklist
This 125 mm bore cylinder features a G1/2 port and a 32 mm rod. It generates 6136 N push and 5734 N pull at 0.5 MPa, increasing to 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The external stop screw shortens the extend stroke by up to 40 mm on-site, giving a usable extend range of 960-1000 mm. The nominal 1000 mm stroke is the maximum. The retract end is fixed. This stop only sets the end position; it is not a load lock, so you need an external rod lock or pilot-operated check valve to hold a load on air loss.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
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