The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X700-100 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø40mm bore, 700mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X700-100 is a double-acting, single-rod pneumatic cylinder offering a field-adjustable stroke end via a rear-cap screw, providing up to 100 mm of fine-tuning range from its nominal 700 mm stroke. This model delivers a push force of 628 N at 0.5 MPa and 1130 N at 0.9 MPa, with a pull force of 528 N at 0.5 MPa, making it suitable for applications requiring precise end-position control without swapping the cylinder.
Built on a durable tie-rod design with a 16 mm diameter piston rod and PT1/4 ports, the SCJ40X700-100 includes a 21 mm air cushion for smooth deceleration. Its body length A(SCJ) is 185 mm, and it operates reliably across a standard temperature range of -20 to +70 °C with TPU seals.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X700-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 700 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×700 | Nominal (maximum) stroke length in mm. |
| -100 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Fine-tune the end stop during initial machine commissioning to dial in the exact stroke needed without mechanical modifications.
Quickly adjust the stroke for different product sizes on packaging or material handling lines, reducing downtime between batches.
Take up mechanical wear in tooling or grippers over time by incrementally adjusting the stroke end to maintain precise positioning.
Select the SCJ40X700-100 when your application requires a 700 mm nominal stroke with the ability to shorten the end position by up to 100 mm during setup or changeovers. If you need more force, consider stepping up to the 50 mm bore SCJ50 series, which provides 982 N of push force at 0.5 MPa. For fixed-stroke applications where adjustability is not required, the standard SC40 series offers a simpler alternative. When replacing this cylinder, match the bore, the 700 mm nominal stroke, the -100 adjust range, and PT port threads. For strokes of this length, ensure the rod is adequately supported against side loads, or consider an external guide to prevent bending.
Adjustable-stroke checklist
At 0.5 MPa, it provides 628 N of push force and 528 N of pull force. The maximum push force at the 0.9 MPa operating limit is 1130 N.
A rear-cap adjusting screw allows you to shorten the stroke end by up to 100 mm from the nominal 700 mm. It sets a mechanical stop for the piston, not the air pressure or speed.
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