The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X85-10S 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, 85mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X85-10S is a double-acting, single-rod pneumatic cylinder from AirTAC with a field-adjustable stroke end. Its 80mm bore delivers a substantial 2513 N of push force at 0.5 MPa, and the rear-cap adjusting screw provides up to 10 mm of fine-tuning on the stroke end position without removing the cylinder from the machine.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. The 25mm diameter piston rod and PT3/8 port ensure robust flow and mechanical strength for demanding linear motion tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X85-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 85 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. |
| ×85 | 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.
Engineers can dial in the exact stroke end position on a new machine using the 10mm adjustment screw, eliminating the need to swap cylinders or machine custom stops during initial build and testing.
On a packaging line, the SCJ80X85-10S can be quickly adjusted to handle different box sizes or product heights, reducing changeover time between production runs without mechanical modifications.
In high-cycle clamping or pressing applications, the 10mm adjustment range allows operators to compensate for tooling or pad wear over time, maintaining consistent clamping force and position without replacing the actuator.
Choose the SCJ80X85-10S when you need 2513 N of push force at 0.5 MPa and the ability to fine-tune the stroke end by up to 10 mm during commissioning or format changes. If your force requirement is lower, stepping down to the 63mm bore reduces push force to 1559 N; for higher force, the 100mm bore provides 3927 N. The adjustable stroke makes this ideal over a fixed-stroke SC when the exact stopping position must be dialed in on the machine.
For replacement, match this model directly: an 80mm bore, 85mm nominal stroke, 10mm adjust range, PT port thread, and built-in magnet. This is a basic mount cylinder; if a pivoting motion is required, the TC centre trunnion mount with its TCM1 bracket is the correct SCJ accessory. For strokes of this length, ensure the load is guided to prevent excessive side-load on the 25mm rod.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. The pull force is lower due to the area of the 25mm piston rod. At the maximum operating pressure of 0.9 MPa, the push force reaches 4523 N.
A screw in the rear end-cap sets the stroke end position. You can shorten the effective stroke by up to 10mm from the nominal 85mm maximum. It is a mechanical stop for the piston, not a speed or force control. The cylinder must be depressurized before making adjustments.
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