The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X130-100 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. Ø50mm bore, 130mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X130-100 is a 50 mm bore double-acting single-rod cylinder with a rear adjusting screw that provides up to 100 mm of stroke-end adjustment. This allows the effective stroke to be field-tuned from 30 mm to 130 mm without replacing the cylinder, making it ideal for commissioning trials and format changeovers. The 20 mm diameter piston rod delivers 982 N of push force and 825 N of pull force at 0.5 MPa, with a maximum push force of 1767 N at the 0.9 MPa operating limit.
Built on the proven SC tie-rod platform, this cylinder features a PT1/4 port, an M16x1.5 rod thread, and a 21 mm adjustable air cushion for smooth end-of-stroke deceleration. The SCJ body length A is 194 mm, slightly longer than the fixed-stroke SC version to accommodate the rear adjustment mechanism. Standard operating pressure is 0.15-1.0 MPa with a speed range of 30-800 mm/s.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X130-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 130 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, 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×130 | 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 100 mm adjustment range lets technicians dial in the exact stroke end position during machine commissioning without swapping cylinders or machining external hard stops.
In clamping or pressing fixtures, the adjusting screw compensates for tooling wear or material thickness variation over time, maintaining consistent contact force without reprogramming.
Packaging and assembly lines that handle multiple product sizes use the SCJ50X130-100 to quickly adjust the stroke for different box heights or part positions, reducing changeover downtime.
Choose the SCJ50X130-100 when you need to fine-tune the stroke end position by up to 100 mm on the machine. If your force requirement is lower, the SCJ40 bore provides 628 N push at 0.5 MPa; for higher force, the SCJ63 delivers 1559 N push. For applications that do not require stroke adjustability, the fixed-stroke SC50 series offers a simpler, more compact alternative. When replacing an existing unit, match the 50 mm bore, 130 mm nominal stroke, 100 mm adjust range, PT port thread, and basic mounting configuration.
With a nominal stroke of 130 mm, side-loading is typically minimal, but for applications with off-centre loads or high-speed cycling, consider adding an external guide rail or switching to a guided cylinder to protect the rod bearing from bending moments.
Adjustable-stroke checklist
At 0.5 MPa, this 50 mm bore cylinder produces 982 N of push force and 825 N of pull force (the difference is due to the single 20 mm rod reducing the piston area on the return side). At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N.
A rear-cap adjusting screw limits the stroke end position within a 100 mm range, so the effective stroke can be set anywhere from 30 mm to the nominal 130 mm. Choose SCJ when you need to fine-tune the stroke on the machine for setup, wear compensation, or format changes. Choose the fixed-stroke SC series when the stroke is permanently fixed and you want a slightly shorter body length.
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