Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S
Delivering 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a magnetic piston for position sensing. Four steel tie rods clamp the aluminum barrel to the covers, delivering structural rigidity alongside a two-way piston seal for reliable performance. The G1/2 port handles the 30-500 mm/s speed range, and the included magnet supports CMSG/DMSG/EMSG switches.
The external adjuster allows you to shorten the extend stroke on-site by up to 20 mm, giving a usable range of 180-200 mm without changing the cylinder itself. This on-site end-position tuning is ideal for sharing spares across stroke variants. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically with a 2:1 margin. For high-heat environments up to 150 C, Viton H seals are available, though standard TPU offers the longest life.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SGCJ125X200-20S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×200 | 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 SGCJ125X200-20S Is Used
Press Fit Tuning
Fine-tune the extend stroke on-site by up to 20 mm to set precise pressing depths for bearing insertion without machining custom spacers.
Divertor Gate Adjustment
Dial in the exact gate open position on a sorting line to accommodate different package sizes using the external stroke adjuster.
Pallet Stop Positioning
Set variable stop points for mixed pallet heights by shortening the extend stroke from its 200 mm maximum down to 180 mm as needed.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X200-20S the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option as it sits at the low edge of the SGCJ family. Stepping up to the 160 mm bore increases push force at 0.5 MPa to 10053 N. The adjustable stroke is highly beneficial when you need to fine-tune the extend end position on-site or want a single spare to cover minor stroke variations. SGCJ mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The built-in magnet (-S) enables direct mounting of CMSG, DMSG, or EMSG sensors. Because the 200 mm stroke is relatively short, side-load stress is minimal, but always ensure adequate guiding on longer strokes exceeding 500 mm.
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 SGCJ125X200-20S FAQ
This 125 mm bore cylinder features a G1/2 port and generates 6136 N push / 5734 N pull at 0.5 MPa, and 8590 N push / 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa. It operates at speeds of 30-500 mm/s with a 40 mm adjustable air cushion at each end.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, providing a usable extend range of 180-200 mm. The nominal 200 mm stroke is the maximum, and the retract end remains fixed. This mechanism 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.
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