The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X100-75STC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø80mm bore, 100mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCJ80X100-75STC is an 80 mm bore double-acting single-rod cylinder delivering a push force of 2513 N at 0.5 MPa, ideal for applications needing a robust yet field-tuneable stroke. Its rear-cap adjusting screw provides a 75 mm stroke-end reduction range, letting you dial in the precise stopping position without swapping the cylinder. The 25 mm rod and PT3/8 ports suit medium-to-heavy pneumatic tasks.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion (TC) pivot mount, supplied with the TCM1 bracket, allowing the cylinder to swing through an arc. The body length A is 239 mm, and the air cushion is 28 mm, offering reliable end-of-stroke deceleration for the 100 mm nominal stroke.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X100-75STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 75 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. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -75 | 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.
Quickly adjust the stroke end by up to 75 mm to accommodate different product sizes on a packaging or assembly line, minimizing downtime between batches.
Fine-tune the actuator's stopping position during machine commissioning to perfectly align with mating tooling or fixtures, without needing custom-length cylinders.
Compensate for mechanical wear in linkages or tooling over time by slightly extending the effective stroke, maintaining consistent process quality.
Choose the SCJ80 for its 2513 N push force at 0.5 MPa. If you need more force, step up to the SCJ100 bore with 3927 N push; for a lighter, more compact solution, the SCJ63 provides 1559 N. This SCJ adjustable-stroke unit is the right pick when you need to fine-tune the stroke end on the machine, unlike a fixed-stroke SC cylinder. For guided loads or high side-force moments, an external guide rail or a guided cylinder is recommended.
This SCJ80X100-75STC is a direct replacement for an identical AirTAC model with an 80 mm bore, 100 mm nominal stroke, 75 mm adjust range, PT ports, centre trunnion mount, and magnet. For strokes of 300 mm or more, assess side-loading and rod bending; an external guide or a guided cylinder will protect the rod and seals.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The push force is higher because it acts on the full 80 mm bore area, while the pull force is reduced by the 25 mm rod cross-section.
A screw in the rear cap limits the piston's retraction, letting you shorten the stroke end by up to 75 mm from the 100 mm nominal maximum. It sets a mechanical stop position and does not adjust air pressure or speed.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.