The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X30-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø80mm bore, 30mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X30-10S is an 80 mm bore, double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 10 mm of field-adjustable stroke-end reduction. This allows precise fine-tuning of the piston stop position without replacing the cylinder, ideal for commissioning and wear take-up. The built-in magnet (S) enables direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the tie-rod barrel for reliable end-of-stroke detection.
With a 25 mm diameter rod and PT3/8 ports, this unit delivers a push force of 2513 N at 0.5 MPa and 4523 N at the maximum operating pressure of 0.9 MPa. The pull force is 2268 N at 0.5 MPa. It features an adjustable air cushion (21 mm length) for smooth deceleration and operates within a standard temperature range of -20 to +70 °C with its TPU seals.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X30-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 30 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×30 | Nominal (maximum) stroke length in mm. |
| -10 | 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.
Use the 10 mm adjusting screw to precisely dial in the final stop position during machine commissioning, eliminating the need for shims or external hard stops.
The built-in magnet pairs directly with CMSG/DMSG sensors, providing clean electrical feedback for the adjusted stroke end in automated pick-and-place or sorting systems.
In high-cycle clamping or pressing fixtures, the adjustable stroke can be periodically tweaked to compensate for tooling wear, maintaining consistent process force and position.
Select the SCJ80X30-10S when you need a robust 80 mm bore actuator with a short 30 mm nominal stroke and the ability to dial back the stroke end by up to 10 mm. If the 2513 N push force at 0.5 MPa is insufficient, stepping up to a 100 mm bore SCJ100 series provides 3927 N. For applications where the stroke is fixed and never needs field adjustment, the standard SC80 series offers a simpler, cost-effective alternative. For direct replacement, match the 80 mm bore, 30 mm nominal stroke, 10 mm adjust range, PT port thread, basic mounting, and the -S magnet option.
For any nominal stroke of 300 mm or more, evaluate side-loading and rod bending risks; an external guide or a guided cylinder is recommended to protect the rod and seals. This 30 mm stroke model operates well within safe limits for unsupported loads.
Adjustable-stroke checklist
At 0.5 MPa air pressure, the push force is 2513 N and the pull force is 2268 N. The maximum push force at the 0.9 MPa operating limit is 4523 N. The pull force is lower due to the 25 mm piston rod reducing the effective area on the retract side.
A rear-cap screw lets you shorten the stroke end by up to 10 mm from the 30 mm nominal maximum. It is a mechanical stop adjustment, not a pressure or speed control. You can use it in place of a fixed-stroke SC80 if you need this field-adjustability; ensure the bore, port thread (PT), and sensor magnet (-S) match your requirements.
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