This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X120-100SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X120-100SB 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 ACPJ20X120-100SB
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100SB is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X120-100SB (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X120-100SB
- 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 ACPJ20X120-100SB
The ACPJ20X120-100SB is a double acting compact cylinder with an adjustable extend stroke, now discontinued and replaced by the ACEJ20X120. Its 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. The -100 code gives a 100 mm adjustment window: a stop screw trims the 120 mm stroke down to as little as 20 mm on site, so one cylinder covers a 20-120 mm working range. The 120 mm stroke exceeds the 100 mm standard maximum for this bore, so it is a made-to-order stroke.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which matters in tight jig plates and guarding. In practice, plan on about 94 N (roughly 9.6 kg of force) of usable push at 0.5 MPa, and expect it to lift about 8 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers at both ends, and the -S magnet this model includes allows CMSE / DMSE switch mounting. Operating range is 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100SB Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X120-100SB |
| Bore size | Ø20 mm |
| Stroke | 120 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 ACEJ20X120-100SB (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 ACEJ20X120-100SB 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 ACPJ20X120-100SB
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×120 | 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 ACPJ20X120-100SB Is Used
Bench-top press fixture
Trimming the stroke from 120 mm down to a 30 mm clinch window lets one cylinder pre-clear the part and then press a bearing or rivet on a small assembly bench, using the 157.1 N push at 0.5 MPa.
Modular jig riser on an SMT line
Where a full-length ISO 15552 profile cylinder will not fit under a placement head, the short body plus LB foot mount ejects rejected PCB carriers from a nest within the 20-120 mm adjustable range.
Battery-pack lid latch
A male-thread rod with an I knuckle trips a spring latch on EV battery trays; the fitted -S magnet and a DMSE switch confirm the latch is fully home before the conveyor advances.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X120-100SB with the ACEJ20X120-100SB
Size against neighbours: the 16 mm bore gives 100.5 N push at 0.5 MPa if the load is lighter, while the next class up adds force headroom for heavier clamping. Note the adjuster is a mechanical end stop for the extend stroke only - it does not lock the piston mid-stroke, and on air loss the rod will drift, so add a valve or external stop where holding matters. This unit has the optional -S magnet fitted and a male (B) rod thread with PT ports; FA flange or LB foot mounts suit fixed fixtures. Before ordering, confirm the ACEJ20X120 replacement matches your ISO 21287 mounting dimensions, since the ACP series is DIN-standard and no longer produced.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X120-100SB
- ✓ 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 ACPJ20X120-100SB FAQ
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa that rises to 219.9 N push and 164.9 N pull, with a theoretical maximum of 32 kgf at 1.0 MPa. The ordered stroke is 120 mm and the -100 stop screw can shorten the extend stroke anywhere within a 100 mm window, giving a usable 20-120 mm range. Because 120 mm exceeds the 100 mm standard stroke for a 20 mm bore, this is a made-to-order stroke. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s.
An external stop screw mechanically limits the extend stroke within the ordered 100 mm window; it cannot lengthen the stroke past 120 mm and it is not a mid-stroke lock, so the rod can drift if air is lost. Fixed TPU bumpers at both ends handle end-of-travel deceleration. The ACPJ family is discontinued - the current-production drop-in is the ACEJ20X120 in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, as the ACP was built to a DIN-standard footprint.
Related AirTAC ACE Cylinders
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