
The AirTAC Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-30SB is a genuine double acting, adjustable stroke ISO 21287 compact air cylinder with a Ø63mm bore and 55mm 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.
Double acting and built to the ISO 21287 compact format, the ACEJ63X55-30SB pairs a 63 mm bore with a 55 mm stroke that an external stop screw trims anywhere in a 30 mm window, giving a usable extend range of 25-55 mm. 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 ceiling of 317.9 kgf at 1.0 MPa. The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and gantry frames. As a rough rule, keep real work to about 935 N (roughly 95 kg equivalent) of the push rating; halving the raw lift figure means this bore lifts about 79 kg vertically with a 2:1 margin. The fitted -S magnet accepts CMSE / DMSE switches, the B code gives a male rod thread, and fixed TPU bumpers absorb end-of-stroke energy at both ends.
| Model | Airtac ACEJ50~63 Adjustable Compact Air Cylinder ACEJ63X55-30SB |
|---|---|
| Series | ACEJ compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø63 mm |
| Stroke | 55 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. |
| ×55 | Stroke length in mm. |
| -30 | 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 holds aluminium or mild-steel parts in milling fixtures, while the 25-55 mm trim range matches varied part heights without swapping cylinders.
A 55 mm stroke (trimmable down to 25 mm) raises and lowers pallet stops at line speed, and the fitted -S magnet feeds CMSE switch signals to the PLC for gate-position confirmation.
With about 935 N of practical working force at 0.5 MPa, the cylinder slides cartons off transfer plates inside gantry frames too shallow for a full-length profile cylinder.
At 63 mm bore you sit mid-range: a 50 mm bore pushes 981.7 N at 0.5 MPa for lighter clamps, while an 80 mm bore delivers 2513.3 N when the tooling needs more muscle. Remember the stop screw is a mechanical end stop for the extend stroke only - on air loss the piston still drifts, so it is not a load-holding lock. FA flange or LB foot mountings bolt to the ISO 21287 face, and this model already carries the -S magnet, so CMSE / DMSE switches can be fitted without reordering.
Quick checklist
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa, 2182.1 N push and 2041.3 N pull; theoretical maximum 317.9 kgf at 1.0 MPa. The ordered stroke is 55 mm and the -30 stop screw trims the extend stroke by up to 30 mm, so the usable range is 25-55 mm. Speed is 30-500 mm/s, operating pressure 0.15-1.0 MPa (22-145 psi), and the bore 63 port size is 1/8" (PT).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends that only decelerate at the ends - they never lock or brake a load. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount in the body slots; FA flange and LB foot mountings bolt straight to the standard face.
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