This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X125-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X125-100S 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 ACPJ20X125-100S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ20X125-100S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 125mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X125-100S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- StatusDiscontinued → ACEJ20X125-100S
- 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 ACPJ20X125-100S
This ACPJ20X125-100S is a double acting compact cylinder with an adjustable extend stroke, and it is discontinued - the current-production replacement is the ACEJ20X125. Air drives the rod out and pulls it back, and a stop screw trims the extend stroke anywhere inside the ordered 100 mm window, giving a usable range of 25-125 mm. At 0.5 MPa the 20 mm bore pushes 157.1 N and pulls 117.8 N, so as a working rule plan on roughly 94 N of real push force, which lifts about 9.6 kg vertically - halve that to around 4.8 kg if you want a 2:1 margin for a gripped part or a small lift gate.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body cannot. Note the 125 mm stroke is longer than the 100 mm standard maximum for bore 20, so this unit is made to order. The body is hard-anodized aluminium with an S45C hard-chrome rod, fixed TPU bumpers sit at both ends, and the -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke sensing. Running spec: 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, -20 to +70 C, M5x0.8 ports, female M6x1.0 rod thread.
Airtac ACPJ Adjustable Compact Cylinder ACPJ20X125-100S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X125-100S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X125-100S |
| Bore size | Ø20 mm |
| Stroke | 125 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 ACEJ20X125-100S (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 ACEJ20X125-100S 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 ACPJ20X125-100S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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 ACPJ20X125-100S Is Used
Compact jig clamping
Trims the clamp stroke from 125 mm down to as little as 25 mm on fixture plates, with 157.1 N push at 0.5 MPa holding small machined parts during a drilling or tapping cycle.
Pick-and-place lift
The 10 mm rod and about 9.6 kg vertical-lift equivalent at 0.5 MPa suit short-stroke raising of connectors or sensor housings on electronics assembly gantries, with CMSE switches confirming position.
Gate and diverter actuation
Short-body mounting fits inside conveyor guarding to swing or push small divert gates on packaging lines, with the 25-125 mm adjustable range matched to each lane width.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ20X125-100S with the ACEJ20X125-100S
Size by force first: at 0.5 MPa this 20 mm bore gives 157.1 N push; step down to a 16 mm bore (100.5 N) for lighter clamps or up to a 32 mm class for heavier work. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke lock - on air loss the piston still drifts, so do not rely on it to hold a load. FA/FB flanges and LB feet bolt to the standard face, and the fitted -S magnet lets you add CMSE / DMSE switches. Before ordering, confirm the ISO 21287 mounting dimensions of the ACEJ20X125 replacement against your fixture, since this ACP body is DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ20X125-100S
- ✓ 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 ACPJ20X125-100S FAQ
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push rises to 219.9 N and pull to 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is double acting with a 100 mm adjustment window on the 125 mm stroke (usable 25-125 mm), M5x0.8 ports, a female M6x1.0 rod thread, fixed TPU bumpers, 0.15-1.0 MPa (22-145 psi) operating pressure and 30-500 mm/s speed. The 125 mm stroke is a made-to-order length because the bore 20 standard maximum is 100 mm.
No - the ACPJ family is discontinued. Order the ACEJ20X125 instead: swap the P for an E and you get the same 20 mm bore, 125 mm stroke and force class in the current ISO 21287 compact series. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, because the ACP body follows the older DIN-standard layout. The -S magnet on this unit is an option code, not standard on every ACE.
Related AirTAC ACE Cylinders
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