
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X25-10 is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 25mm 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.
The ACEJ63X25-10 is a double acting ISO 21287 compact cylinder with an adjustable extend stroke: an external stop screw trims the 25 mm stroke by up to 10 mm, giving a usable range of 15-25 mm without changing hardware. At 0.5 MPa the 63 mm bore delivers 1558.6 N on extend and 1458.1 N on retract, rising to 2182.1 N at 0.7 MPa. In practice that means roughly 935 N (about 95 kg) of real working force if you plan at 60% of the rating, and it lifts about 79 kg vertically with a 2:1 margin.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight press fixtures and gantries. A hard-anodized aluminium body carries a 16 mm S45C hard-chrome rod, fixed TPU bumpers absorb end-of-stroke shock at both ends, and the female M10x1.5 rod thread plus FA/LB mounting bolt straight into standard fixtures. Note this unit has no magnet fitted - order the -S code if you need CMSE / DMSE switch sensing.
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X25-10 |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 25 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. |
| ×25 | Stroke length in mm. |
| -10 | 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 extend force at 0.5 MPa swages or stakes small brackets, and the 15-25 mm adjustable window lets the setter match the stop to each die without swapping cylinders.
With about 79 kg vertical lift capability at a 2:1 margin, the 63 mm bore raises small aluminium housings between nests, and the compact body fits where an ISO 15552 profile cylinder is too long.
FA flange mounting and the female M10x1.5 rod thread drop straight into existing jigs to clamp castings during a 25 mm or shorter clamping move at 30-500 mm/s.
Size against the load: at 0.5 MPa this bore pushes 1558.6 N; step down to ACEJ50 (981.7 N) for lighter clamping, or up to ACEJ80 (2513.3 N) if the job needs more margin. The 25 mm stroke suits short-travel work, and the -10 window lets you dial the extend stop anywhere between 15 and 25 mm on site. Remember the stop screw is an end stop only - on air loss the piston drifts, so add a valve or lock for load holding. If you need position feedback, order the -S magnet variant for CMSE / DMSE switches; this model ships without one.
Quick checklist
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa those rise to 2182.1 N and 2041.3 N, with a theoretical maximum of 317.9 kgf at 1.0 MPa. It runs on air filtered to 40 um at 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. The port is 1/8" (PT), the rod is 16 mm with a female M10x1.5 thread, and the extend stroke is trimmed by the stop screw anywhere in the 15-25 mm range set by the -10 window.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixtures and guarded cells. Turning the external stop screw in shortens the extend stroke by up to 10 mm from the ordered 25 mm; it never extends past 25 mm. Fixed TPU bumpers at both ends absorb end-of-stroke impact, FA flange or LB foot mounting bolts to the standard ISO 21287 face, and if you order the -S code the optional magnet enables CMSE / DMSE switches - without -S there is no magnet in the piston.
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