This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-75B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-75B in place of this model. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 100mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X100-75B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke100 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X100-75B
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B
The ACPJ20X100-75B is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke by up to 75 mm, giving a usable range of 25-100 mm on site. Air drives the rod out and pulls it back, and a fixed TPU bumper sits at each end. At 0.5 MPa the 20 mm bore delivers 157.1 N push and 117.8 N pull; at 0.7 MPa that rises to 219.9 N push. This model is discontinued - the current-production drop-in is the ACEJ20X100, same bore, stroke and force class.
The hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into shallow fixtures, pick-and-place gantries and guarding where a full-length body will not fit. In practice, plan for roughly 94 N of real work at 0.5 MPa rather than the full rating, which means this unit lifts about 8 kg vertically with a 2:1 margin. The rod end is male thread (the B code) and the port is M5x0.8. Note the stop screw is a mechanical end stop only - on air loss the piston still drifts, so it never holds a load. No magnet is fitted on this version; the optional -S code adds one for CMSE / DMSE switches.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-75B |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ20X100-75B (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACEJ20X100-75B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (adjustable stroke).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B Is Used
Carton ejector on a case packer
With 157.1 N push at 0.5 MPa and a stop set anywhere from 25 to 100 mm, one cylinder ejects different carton depths without changing the body - just turn the stop screw.
Small press fixture for connector crimping
The roughly 94 N of practical working force at 0.5 MPa suits light crimp and stake operations on terminals and small plastic housings, with the male rod thread taking a knuckle directly.
Drop station in a compact assembly gantry
A body about 50% shorter than an ISO 15552 profile cylinder lets the 20 mm bore lower parts about 8 kg vertically in tight Z-axes between guarding plates.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B with the ACEJ20X100-75B
Size by force: at 0.5 MPa this 20 mm bore pushes 157.1 N, while the 16 mm bore gives 100.5 N and the next class up (32 mm) exceeds 300 N - step up if your load needs more than about 94 N of usable force. The 75 mm window suits machines where one body must serve several product lengths: set the stop anywhere between 25 mm and 100 mm of extend stroke. Remember the adjuster is an end stop, not a mid-stroke lock, so do not rely on it to hold a load against gravity. Mounting options include FA/FB flange and LB foot plus I/Y rod knuckles on the ISO 21287 face. If you need position sensing, order the -S variant with the optional magnet; this B-code unit has none. For new projects, specify the ACEJ20X100 instead and confirm ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-75B
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-75B FAQ
At 0.5 MPa: 157.1 N push and 117.8 N pull. At 0.7 MPa: 219.9 N push and 164.9 N pull. Theoretical maximum is 32 kgf at 1.0 MPa. The -75 code sets a 75 mm adjustment window: an external stop screw shortens the 100 mm extend stroke by up to 75 mm, so the working range is 25-100 mm. It shortens the stroke only - it cannot lengthen it past 100 mm, and it is an end stop, not a load-holding brake. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um.
The hard-anodized aluminium body is an ISO 21287-class short build that saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot options and a male rod thread on this B-code unit. A fixed TPU bumper at both ends simply decelerates the piston at each end of travel. No magnet is fitted here - the optional -S code adds one so CMSE / DMSE switches can be used. This model is discontinued; the current drop-in is the ACEJ20X100 (P changed to E), same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
Related AirTAC ACE Cylinders
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