
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-40B 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.
The ACEJ63X75-40B is a double acting ISO 21287 compact cylinder with a 63 mm bore and a 75 mm stroke that can be trimmed on site. An external stop screw shortens the extend stroke by up to 40 mm, giving a usable range of 35-75 mm, so one cylinder serves several jig positions without re-plumbing. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push rises to 2182.1 N. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into cramped palletizer frames and machine guards.
Because the bore 63 rod is 16 mm hard-chrome-plated S45C steel running in a hard-anodized aluminium body, the cylinder holds up in high-cycle packaging lines. Plan on roughly 935 N (about 95 kg) of real work at 0.5 MPa, which lifts about 79 kg vertically with a 2:1 margin - enough for a loaded tray of bottled drinks. The male (B) rod thread suits external rod attachments, and the fixed TPU bumper at both ends absorbs end-of-stroke shock at speeds of 30-500 mm/s.
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X75-40B |
|---|---|
| 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. |
| -40 | 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.
Pushes filled trays off a conveyor stop at 1558.6 N, with the 35-75 mm adjustable range matching different tray heights without changing cylinders.
The male rod thread takes a custom clamp arm, and the 40 mm trim window lets one cylinder serve both short and tall workpieces.
Squares pallet loads in tight guard space where the compact body's 50% shorter mounting length over an ISO 15552 profile cylinder is the deciding factor.
Size the load against 1558.6 N push at 0.5 MPa; if your tooling needs less, the ACEJ50X75-40B class delivers 981.7 N at the same pressure, while the ACEJ80X75-40B reaches 2513.3 N for heavier presses. Note that the stop screw is a mechanical end stop only - it sets the extend position but does not lock the piston if air is lost. FA flange and LB foot mounts bolt to the ISO 21287 face, and the optional -S magnet (not fitted on this code) enables CMSE / DMSE switches; order the S variant if end-position sensing is needed.
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; theoretical maximum is 317.9 kgf at 1.0 MPa. The -40 code is a 40 mm adjustment window: an external stop screw shortens the 75 mm extend stroke to any length down to 35 mm. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is 1/8" (PT).
The hard-anodized aluminium body is an ISO 21287 compact design that saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA flange and LB foot options. A fixed TPU bumper at each end decelerates the piston at the ends of travel only - it never holds or brakes a load. This code has no magnet, so no switch can be mounted; order the -S version to enable CMSE / DMSE switches.
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