This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-100B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-100B 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 ACPJ20X100-100B
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100B 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 ACEJ20X100-100B (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 → ACEJ20X100-100B
- 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 ACPJ20X100-100B
A double acting compact cylinder with an adjustable extend stroke, the ACPJ20X100-100B pairs a 20 mm bore with a 100 mm stroke and a male rod thread (the B code). At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those figures rise to 219.9 N and 164.9 N. The -100 code gives a full 100 mm trim window, so an external stop screw can shorten the extend stroke anywhere in a 0-100 mm range to match the jig you are building. Note this model is discontinued: the current-production drop-in is the ACEJ20X100, so confirm ISO 21287 mounting dimensions before swapping.
The short ISO 21287 body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which matters in tight gantries and guarding. In practice, plan on about 94 N of usable push at 0.5 MPa rather than the full 157.1 N rating, which corresponds to lifting roughly 8 kg vertically with a 2:1 margin. A fixed TPU bumper sits at both ends, the hard-anodized aluminium body carries an S45C hard-chrome rod, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). No magnet is fitted on this version; the optional -S code adds one for CMSE / DMSE switches.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100B Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-100B |
| 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 ACEJ20X100-100B (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 ACEJ20X100-100B 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 ACPJ20X100-100B
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -100 | 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 ACPJ20X100-100B Is Used
Fixture clamping on CNC pallets
The 94 N usable push at 0.5 MPa suits light clamping of aluminium brackets on machining-centre pallets, with the stop screw trimmed to the fixture depth.
Small-part ejection from press dies
About 8 kg of vertical lift capacity with margin lets the 10 mm rod kick finished spacers off a stamping die into a chute at up to 500 mm/s.
Product stopper on packaging lines
The 0-100 mm trim window lets one cylinder serve several lane widths, stopping cartons on a conveyor without changing hardware between runs.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100B with the ACEJ20X100-100B
Size against neighbours: the 16 mm bore delivers 100.5 N push at 0.5 MPa, while stepping up to a larger compact bore buys headroom if your load sits near the 94 N practical limit of this 20 mm unit. The adjuster is a mechanical end stop for the extend stroke only - it does not hold position if air is lost, so add external stops or a separate clamp for load holding. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Since ACPJ is discontinued, order the ACEJ20X100 as the current equivalent and verify mounting dimensions.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-100B
- ✓ 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 ACPJ20X100-100B FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull. Theoretical maximum is 32 kgf at 1.0 MPa. As a rule of thumb, budget about 94 N for real work at 0.5 MPa - roughly 8 kg of vertical lift with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, port M5x0.8, rod thread M6x1.0 male.
The -100 code is a 100 mm adjustment window: an external stop screw shortens the extend stroke anywhere from 0 to 100 mm, but it never lengthens the stroke past the ordered 100 mm and it will not hold a load if air pressure drops. This ACPJ series is discontinued; the current-production replacement is the ACEJ20X100, an ISO 21287 drop-in in the same bore, stroke and force class - confirm mounting dimensions before swapping. If you need position sensing, the optional -S magnet enables CMSE / DMSE switches.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-100B
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X100-100B replacement — usually within 7-8 hours.