
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-75S is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 75mm stroke, 1/8" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
A double acting ISO 21287 compact cylinder, the ACEJ63X75-75S pairs a 63 mm bore with a 75 mm stroke that an external stop screw trims anywhere in the 0-75 mm range. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into presses, clamping fixtures and machine frames where a full-length body simply will not fit.
Because the -S magnet is fitted on this unit, CMSE or DMSE reed and solid-state switches can be clipped onto the body for end-of-stroke signalling. A fixed TPU bumper at each end absorbs end-of-stroke shock, the hard-anodized aluminium body runs against an S45C hard-chrome rod, and the 16 mm female rod thread (M10x1.5) accepts standard knuckles. At 0.5 MPa the push force lifts about 159 kg vertically, so halving that leaves roughly 79 kg as a comfortable vertical-lift margin for a real part.
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-75S |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 75 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 250 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| ACEJ | ISO 21287 compact cylinder (adjustable-stroke). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
The 1558.6 N push at 0.5 MPa stakes, rivets or swages aluminium brackets in a bench press, with the 0-75 mm adjustable window tuned per die.
Clamps steel housings before machining; the short ISO 21287 body fits inside the fixture base where a longer profile cylinder would collide with the vise.
Acts as a positive stop for pallets on an assembly conveyor, with CMSE switches reading extend and retract positions thanks to the fitted -S magnet.
At this bore size the 63 mm ACEJ delivers 1558.6 N push at 0.5 MPa; step down to the 50 mm bore (981.7 N) for lighter clamps or up to the 80 mm bore (2513.3 N) when the load grows. Plan on roughly 935 N of usable push at 0.5 MPa rather than the full rating. The adjuster is a mechanical end stop for the extend stroke only - on air loss the piston can still drift, so add a valve or external stop if the load must be held. FA flange and LB foot mountings plus I and Y rod knuckles bolt to the ISO 21287 face, and the fitted -S magnet lets CMSE / DMSE switches report position. Ports are 1/8" and the female rod thread is M10x1.5.
Quick checklist
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push is 2182.1 N and pull 2041.3 N, with a theoretical maximum of 317.9 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, and the port is 1/8". The extend stroke is adjustable anywhere within the 75 mm window via the external stop screw.
A stop screw on the cylinder shortens the extend stroke on site within the ordered 75 mm window, so the effective range runs from near 0 up to 75 mm; it never lengthens the stroke beyond that. It is a mechanical end stop, not a mid-stroke lock. This model carries the optional -S magnet, so CMSE or DMSE reed or solid-state switches mount directly on the body slots. Mounting options include FA flange and LB foot, with I and Y rod knuckles on the M10x1.5 female thread.
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