The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X200-100H 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. Ø63mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X200-100H is a double-acting, single-rod tie-rod cylinder that puts stroke-end tuning directly on the machine. A rear-cap adjusting screw lets you shorten the effective stroke by up to 100 mm without removing the cylinder, making it ideal for commissioning trials, format changeovers, or taking up wear in end stops. The 63 mm bore delivers 1559 N of push force at 0.5 MPa and 2805 N at the maximum operating pressure of 0.9 MPa.
This variant is built with Viton (FKM) seals, extending the operating temperature range to 0–150 °C for hot or chemically aggressive environments. The 20 mm piston rod runs in a PT1/4 ported body with a 28 mm air cushion, and the SCJ body length A is 197 mm—slightly longer than the fixed-stroke SC of the same bore. It accepts the SCJ mounting subset: basic, FA front flange, LB foot, or TC centre trunnion with TCM1 bracket.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X200-100H |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 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 | 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. |
| ×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.
Dial in the exact stroke end position with the rear screw during machine commissioning, eliminating the need for shims or external hard stops.
The Viton seals allow this cylinder to operate in 0–150 °C environments, such as a heated conveyor stop where the stroke must be adjusted for different product widths.
In a high-cycle clamping fixture, use the 100 mm adjust range to compensate for jaw or pad wear over time, maintaining consistent clamping force without replacing the cylinder.
Step up to the 80 mm bore SCJ80 series when you need more push force—2513 N at 0.5 MPa versus 1559 N here. If your application does not require field stroke adjustment, the fixed-stroke SC63 cylinder is a simpler, lower-cost alternative. For a drop-in replacement, match the 63 mm bore, 200 mm nominal stroke, 100 mm adjust range, PT port thread, and Viton seal; the SCJ mounting accessories use the F-SC63 prefix (e.g., F-SC63FA for a front flange). At 200 mm stroke, rod bending is rarely a concern with the 20 mm rod under axial loads, but if the cylinder experiences significant side force, add an external guide rail or switch to a guided cylinder.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N (the difference is due to the single 20 mm rod). At the maximum operating pressure of 0.9 MPa, the push force reaches 2805 N.
Yes, provided the mounting style, port thread (PT), and seal material (Viton) match. The SCJ body is slightly longer (A=197 mm) to accommodate the rear adjusting screw, so verify clearance behind the cylinder. The mounting accessories (FA, LB, TC) are shared between the SC and SCJ families.
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