The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X150-30SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø63mm bore, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X150-30SH is a double-acting, single-rod AirTAC cylinder engineered for applications requiring fine-tuned stroke adjustment in high-temperature environments. Its rear-cap adjusting screw provides up to 30 mm of stroke-end reduction, allowing operators to dial in the exact stopping position without swapping the cylinder. With a 20 mm rod and PT1/4 ports, it delivers 1559 N of push force at 0.5 MPa, scaling to 2805 N at the maximum operating pressure of 0.9 MPa.
This model features a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, enabling reliable end-of-stroke detection. The -H suffix specifies Viton (FKM) seals, extending the operating temperature range to 0–150°C, making it suitable for hot presses, drying equipment, or autoclave peripherals. The body length A(SCJ) is 197 mm, and the adjustable cushion decelerates the piston smoothly over a 28 mm length.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X150-30SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×150 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
In a heated laminating press, the 30 mm adjust range lets technicians compensate for varying material thicknesses or platen wear without disassembling the tooling. The Viton seals withstand the sustained 120°C ambient temperature.
The adjustable stroke sets the precise opening gap of a drying oven door. The built-in magnet provides sensor feedback to the PLC, confirming the door is fully open, while the FKM seals ensure reliability in the hot, dry environment.
Used to push hot-formed parts off a conveyor, the stroke can be fine-tuned to accommodate different part widths. The 1559 N push force at standard shop air is sufficient to eject metal or dense plastic components.
Select the SCJ63 bore when your load requires between 1559 N and 2805 N of push force. If you need more force, step up to the SCJ80, which provides 2513 N of push at 0.5 MPa. For applications that do not require field-adjustable stroke, the fixed-stroke SC63 is a simpler, cost-effective alternative. This cylinder is a direct replacement for another AirTAC SCJ63 with a 150 mm nominal stroke, 30 mm adjust range, PT ports, and a magnet, provided the same mounting style is used.
For this 150 mm stroke, side-loading is typically manageable with the cylinder's internal bushings, but if the rod is subjected to significant radial forces, an external guide rail or a guided cylinder should be considered to prevent premature seal wear and rod bending.
Adjustable-stroke checklist
The push force is 1559 N at 0.5 MPa and 2805 N at 0.9 MPa. The pull force is slightly lower due to the 20 mm rod area, providing 1402 N at 0.5 MPa. These values are identical to the fixed-stroke SC63 cylinder.
No, the SCJ63X150-30SH is a standard double-acting cylinder and will not hold position if air pressure is exhausted or the directional valve is centered. The adjustable screw only sets the stroke end position, not a mechanical lock. For load holding, you must add an external rod brake or a pilot-operated check valve.
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