This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-30S 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 ACPJ20X100-30S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30S 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 ACEJ20X100-30S (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 → ACEJ20X100-30S
- 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 ACPJ20X100-30S
The ACPJ20X100-30S is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 100 mm stroke by up to 30 mm, giving a usable range of 70-100 mm on site. At 0.5 MPa the 20 mm bore pushes 157.1 N and pulls 117.8 N, and its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body will not fit.
This -S version carries the optional magnet, so CMSE / DMSE reed or solid-state switches can be clamped straight onto the hard-anodized aluminium body to report end positions. For sizing, treat roughly 94 N (about 0.6 of the push force) as the practical working effort at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. Note that this model is discontinued; the current-production drop-in is the ACEJ20X100, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-30S |
| 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 ACEJ20X100-30S (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 ACEJ20X100-30S 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 ACPJ20X100-30S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -30 | 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 ACPJ20X100-30S Is Used
Fixture clamp with trimmed stroke
On a CNC machining fixture, the stop screw is set to 85 mm so the 157.1 N push clamps shallow housings without bottoming out; the fitted magnet feeds a clamp-confirmed signal to the PLC via a CMSE switch.
Carton push-off on a packing line
A packaging machine ejects filled cartons sideways at 30-500 mm/s; the 70-100 mm adjustable range lets technicians match different carton widths by turning the stop screw instead of swapping cylinders.
Small-parts press station
An electronics assembly bench presses bearings into housings using about 94 N of practical effort at 0.5 MPa, enough for light interference fits on parts up to roughly 8 kg equivalent vertical load.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30S with the ACEJ20X100-30S
At 0.5 MPa this 20 mm bore delivers 157.1 N push; step down to a 16 mm bore for about 100.5 N, or up to a 32 mm class body when you need well over 200 N. The 30 mm window suits fixtures where part heights vary and the extend stroke must be trimmed to 70-100 mm without changing cylinders. The adjuster is a mechanical end stop only - on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flange and LB foot mounts plus I/Y rod knuckles bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ20X100 as the current replacement and verify ISO 21287 footprint dimensions first.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-30S
- ✓ 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 ACPJ20X100-30S FAQ
The 20 mm bore pushes 157.1 N and pulls 117.8 N at 0.5 MPa; at 0.7 MPa it reaches 219.9 N push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. It runs double acting on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), temperature -20 to +70 C, speed 30-500 mm/s, with a 10 mm rod, M5x0.8 ports, female M6x1.0 rod thread and fixed TPU bumpers at both ends.
The -30 code is a 30 mm adjustment window: an external stop screw shortens the 100 mm extend stroke by up to 30 mm, so the working range is 70-100 mm. It trims the stroke only - it is not a mid-stroke lock, and the rod still drifts if air is lost. The ACPJ family is discontinued; the current-production drop-in is the ACEJ20X100 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP is DIN-standard.
Related AirTAC ACE Cylinders
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