The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X200-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø80mm bore, 200mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X200-30 is an 80 mm bore double-acting single-rod cylinder that lets you fine-tune the stroke end position by up to 30 mm via a rear-cap adjusting screw. Its nominal 200 mm stroke can be shortened on the machine during commissioning or changeovers, eliminating the need for external hard stops. The 25 mm piston rod and PT3/8 ports deliver a robust push force of 2513 N at 0.5 MPa, rising to 4523 N at the maximum operating pressure of 0.9 MPa.
This tie-rod cylinder uses a 28 mm air cushion to decelerate the piston quietly at end of travel, and the adjustable-stroke screw sets the retract end position without affecting the extend stroke or the cylinder's force output. The body length A(SCJ) is 239 mm, making it slightly longer than a fixed-stroke SC of the same bore. This model ships with basic mounting, TPU seals for -20 to +70 °C operation, and standard PT threads.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X200-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 30 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. |
| ×200 | Nominal (maximum) stroke length in mm. |
| -30 | 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 retract stop during initial machine setup without fabricating custom shims or hard stops. The 30 mm adjustment range lets technicians fine-tune the end position quickly on the factory floor.
On packaging or sorting lines, adjust the stroke end to accommodate different product sizes or box dimensions. The rear screw makes format changes a quick, tool-free adjustment rather than a cylinder swap.
In clamping or pressing fixtures, take up mechanical wear over time by advancing the stroke end. The 30 mm of adjustment lets operators maintain consistent clamp force without replacing the actuator.
Choose the SCJ80X200-30 when you need to dial in the exact retract position on a machine without swapping cylinders. If your force requirement is lower, stepping down to a 63 mm bore (1559 N push at 0.5 MPa) saves space and air consumption; if you need more force, the 100 mm bore delivers 3927 N push at the same pressure. For applications that do not require field-adjustable stroke, a fixed-stroke SC80X200 is a simpler alternative. When replacing this cylinder, match the 80 mm bore, 200 mm nominal stroke, 30 mm adjustable range, PT port thread, and basic mounting. For strokes of 200 mm and above, ensure the rod is not subjected to excessive side loads; if the load is not guided externally, consider adding a guide rod or switching to a guided cylinder.
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 because the 25 mm rod reduces the effective piston area on the retract side). At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N.
Yes, provided you need the adjustable-stroke feature. The SCJ shares the same bore, rod diameter, port size, and mounting accessories as the SC80. The SCJ body is slightly longer to accommodate the adjusting screw, so check your space envelope. The adjustment only shortens the retract stroke; the nominal 200 mm extend stroke remains unchanged.
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.