The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X70-10 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, 70mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X70-10 is an 80 mm bore double-acting single-rod pneumatic cylinder with a rear adjusting screw that lets you shorten the stroke end by up to 10 mm in the field. Its push force reaches 2513 N at 0.5 MPa and 4523 N at 0.9 MPa, driven by a 25 mm diameter piston rod through PT3/8 ports. The tie-rod body measures 239 mm (A dimension), and the adjustable cushion decelerates the load over a 28 mm travel.
This adjustable-stroke design is ideal for commissioning trials or format changeovers where the exact end position must be dialled in on the machine. The screw sets only the stroke end—it does not alter the bore, force rating, or the nominal 70 mm maximum stroke. Standard TPU seals handle -20 to +70 °C with filtered air, and the basic mount accepts FA, LB, or TC accessories from the SCJ subset.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X70-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 70 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. |
| ×70 | 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.
Dial in the exact end-of-stroke position during machine setup. The 10 mm rear screw adjustment lets technicians compensate for stack-up tolerances without re-machining brackets or swapping cylinders.
On packaging or assembly lines, mechanical stops can wear over time. The adjustable stroke end compensates for this wear, maintaining precise part placement without immediate hardware replacement.
Quickly adapt the cylinder stroke for different product sizes. The 10 mm adjustment range allows operators to reset the end position for a new format in seconds, reducing downtime on multi-product lines.
Choose the SCJ80X70-10 when you need to fine-tune the stroke end by up to 10 mm without adding external hard stops. If the force requirement is lower, stepping down to a 63 mm bore reduces push to 1559 N at 0.5 MPa; for heavier loads, the 100 mm bore delivers 3927 N. When the application demands a fixed, non-adjustable stroke, the standard SC80X70 is a simpler alternative. For a drop-in replacement, match an SCJ80 cylinder with a 70 mm nominal stroke, a 10 mm adjust range, PT3/8 ports, and the same basic mounting. If side loads are present, add an external guide rail or switch to a guided cylinder to protect the rod bearing.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder produces 2513 N pushing and 2268 N pulling. At the maximum operating pressure of 0.9 MPa, push force rises to 4523 N. The theoretical maximum at 1.0 MPa is 513 kgf.
Yes, if you need the ability to fine-tune the stroke end. The SCJ80X70-10 matches the bore, nominal 70 mm stroke, and PT3/8 ports of an SC80. Ensure the slightly longer body length (239 mm A dimension) fits your mounting space and order the same SCJ-compatible mounting accessory.
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.