This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X100-100 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X100-100 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 ACPJ20X100-100
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100 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 ACEJ20X100-100 (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 → ACEJ20X100-100
- 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 ACPJ20X100-100
This ACPJ20X100-100 is a double acting compact cylinder with an adjustable extend stroke: the -100 code gives a 100 mm trim window, so an external stop screw lets you dial the effective stroke anywhere from 0 to 100 mm on site. The 20 mm bore delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N push at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. As a rule of thumb, plan on roughly 94 N of real work at 0.5 MPa - about 4 kg of vertical lift with a 2:1 margin - when matching the part you are moving.
The 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. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). Note 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 ACPJ20X100-100 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X100-100 |
| 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 ACEJ20X100-100 (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 ACEJ20X100-100 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 ACPJ20X100-100
| 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 ACPJ20X100-100 Is Used
Small-parts ejection from fixtures
The 157.1 N push at 0.5 MPa is enough to kick machined bushings or stamped clips off a CNC jig, and the 100 mm trim window lets one cylinder serve several fixture depths.
Light vertical lowering in test rigs
With about 4 kg of practical vertical lift at a 2:1 margin, the 20 mm bore suits press-down probes and go/no-go gauges on electronics inspection benches.
Product divert on compact conveyors
The short body fits under low conveyor frames, pushing cartons or trays off a 100 mm-wide lane where a full-length profile cylinder would not clear the guard.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X100-100 with the ACEJ20X100-100
Size both ways before committing: if 157.1 N push at 0.5 MPa is more than you need, the ACPJ16 at 100.5 N push may suffice; if 219.9 N at 0.7 MPa is marginal for your load, step up to a larger bore. The 100 mm stroke sits exactly at the bore 20 maximum standard stroke, so no made-to-order stroke is involved. The stop screw trims the extend stroke only - it is a mechanical end stop, not a mid-stroke lock, so the rod can still drift on air loss. This unit has no magnet fitted; order the -S code if you need CMSE / DMSE switch position sensing. For new builds, specify the ACEJ20X100 instead.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X100-100
- ✓ 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 ACPJ20X100-100 FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa it pushes 219.9 N and pulls 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. It is double acting with a 100 mm stroke and a 100 mm adjustment window, M5x0.8 ports, a 10 mm rod with female M6x1.0 thread, fixed TPU bumpers at both ends, speed 30-500 mm/s, and operating pressure 0.15-1.0 MPa (22-145 psi).
Order the ACEJ20X100, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 100 mm stroke and force class in a matching short body. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions against your fixture before swapping. If you need position sensing, the -S magnet option pairs with CMSE / DMSE switches on the replacement.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ20X100-100
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