The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X200-100S 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, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ40X200-100S is a double-acting, single-rod pneumatic cylinder from AirTAC, featuring a 40mm bore and a 200mm nominal stroke. Its defining characteristic is the rear-cap adjusting screw, which provides a field-adjustable stroke end within a 100mm range, allowing fine-tuning without cylinder replacement. The built-in magnet (-S) enables direct mounting of CMSG/DMSG/EMSG sensors for precise end-of-stroke detection.
With a 16mm diameter piston rod and PT1/4 ports, this tie-rod cylinder delivers a push force of 628 N at 0.5 MPa and can operate at up to 1.0 MPa, generating 1130 N of push force. The adjustable air cushion, with a 21mm cushion length, ensures smooth deceleration. Its body length A(SCJ) is 185mm plus the 200mm stroke, making it a compact solution for applications requiring on-machine stroke adjustment.
| Model | Airtac SCJ40 Standard Cylinder SCJ40X200-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 200 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. |
| ×200 | 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.
The 100mm adjust range allows engineers to precisely dial in the stroke end position during initial machine setup without swapping cylinders or machining external stops, saving significant commissioning time.
Ideal for packaging or sorting lines that handle different product sizes. The stroke can be quickly re-adjusted on the fly to accommodate a new box height or pallet width, minimizing downtime between batches.
In clamping or pressing applications, the adjustable screw can be used to take up mechanical wear on tooling or workpieces over time, maintaining consistent contact force without reprogramming a controller.
Choose the SCJ40X200-100S when your application demands a 200mm stroke that can be shortened by up to 100mm during commissioning or changeovers. If 628 N of push force at 0.5 MPa is insufficient, stepping up to a 50mm bore (SCJ50) provides 982 N. For applications where the stroke is fixed and never needs adjustment, the standard SC series is a more cost-effective choice. This model is a direct replacement for an existing AirTAC SCJ40X200-100S with a magnet, PT ports, and basic mounting. For strokes of 200mm, ensure the load is guided to prevent excessive side-loading on the 16mm rod.
Adjustable-stroke checklist
The theoretical push force at 0.5 MPa is 628 N, and the pull force is 528 N (due to the 16mm rod area). At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. Always apply a safety factor for real-world dynamic loads.
A rear adjusting screw sets the physical end-stop for the piston's retract stroke, allowing you to shorten the stroke by up to 100mm from its 200mm nominal maximum. This is a mechanical adjustment, not a force or speed control. The standard SC cylinder has a fixed, non-adjustable stroke.
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