This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-30B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-30B 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 ACPJ20X100-30B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30B 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 ACEJ20X100-30B (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 → ACEJ20X100-30B
- 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 ACPJ20X100-30B
Double acting compact cylinder with an adjustable extend stroke, the ACPJ20X100-30B uses a 20 mm bore and 100 mm stroke to deliver 157.1 N of push force and 117.8 N of pull force at 0.5 MPa (rising to 219.9 N at 0.7 MPa). The -30 code sets a 30 mm adjustment window: an external stop screw trims the extend stroke anywhere in the 70-100 mm range on site, so one cylinder serves several fixture positions. This model is discontinued; the current-production replacement is the ACEJ20X100, so confirm ISO 21287 mounting dimensions before swapping.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which makes it easy to fit into deep pockets, sliding guards and compact gantries. At 0.5 MPa the push force equates to roughly 16 kgf, so plan for about 9 kg of vertical lift with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod with a male (B code) thread, M5x08 ports, fixed TPU bumpers at both ends and a speed range of 30-500 mm/s. Note that no magnet is fitted on this version; the optional -S code is required before any CMSE / DMSE switch can be used.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-30B |
| 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 ACEJ20X100-30B (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 ACEJ20X100-30B 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 ACPJ20X100-30B
| 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 ACPJ20X100-30B Is Used
Fixture clamp with tuned stroke
On a CNC machining fixture, the 30 mm window lets the operator trim the 100 mm extend stroke to clamp a 70-100 mm part stack, using the 157.1 N push at 0.5 MPa for light clamping.
Small part eject on packaging line
Ejects filled cartons or blisters off a conveyor at 30-500 mm/s; the pull force of 117.8 N at 0.5 MPa retracts the rod quickly for the next cycle.
Slide actuation in a compact gantry
Drives a short linear slide inside a tight assembly-station frame where the ISO 21287 short body fits where a full-length profile cylinder cannot.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-30B with the ACEJ20X100-30B
Size up or down by force: the 16 mm bore gives 100.5 N push at 0.5 MPa for lighter clamping, while stepping to a larger bore is needed above about 157 N. The 30 mm window suits jobs where the final extend position is tuned after installation, but remember the stop screw is a mechanical end stop only - it shortens the stroke and does not hold a load if air pressure is lost. FA/FB flange and LB foot mounts bolt to the ISO 21287 face. If you need position sensing, order the -S magnet version instead. For new designs, specify the ACEJ20X100.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-30B
- ✓ 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 ACPJ20X100-30B FAQ
At 0.5 MPa it pushes with 157.1 N and pulls with 117.8 N; at 0.7 MPa those rise to 219.9 N push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. The -30 code gives a 30 mm adjustment window: a stop screw shortens the extend stroke anywhere in the 70-100 mm range. It is a mechanical end stop, not a load-holding lock, so the piston can drift if air is lost.
No - the ACPJ family is discontinued. The current drop-in is the ACEJ20X100 (same 20 mm bore, 100 mm stroke and force class); confirm the ISO 21287 mounting dimensions before swapping. This version has no magnet, so no switch can be mounted; the optional -S magnet code enables CMSE / DMSE reed or solid-state switches. Ports are M5x0.8, rod thread is male, and fixed TPU bumpers sit at both ends.
Related AirTAC ACE Cylinders
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