This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE40X70 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE40X70 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 ACP Compact Cylinder ACP40X70
The AirTAC Airtac ACP Compact Cylinder ACP40X70 is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 70mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X70 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ40 mm
- Stroke70 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM8×1.25
- StatusDiscontinued → ACE40X70
- 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 ACP Compact Cylinder ACP40X70
The ACP40X70 is a double acting compact cylinder in the discontinued AirTAC ACP DIN-standard series, with a 40 mm bore and 70 mm stroke. At 0.5 MPa it delivers 628.3 N push and 571.8 N pull, rising to 879.6 N push at 0.7 MPa. Its short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits so well into tight machine frames and guarding. Air supply runs 0.15-1.0 MPa (22-145 psi) with rod speeds of 30-500 mm/s.
The hard-anodized aluminium body carries aluminium covers and an S45C hard-chrome rod, with a fixed TPU bumper at each end. Plan on roughly 377 N of usable push at 0.5 MPa (about 0.6 of the rating), which is a vertical lift of around 38 kg - halve that to about 19 kg for a 2:1 margin when lifting real parts. This model has no magnet fitted; order the -S code to enable CMSE / DMSE switches. The ACP40X70 is discontinued, and the current-production drop-in is the ACE40X70 - confirm ISO 21287 mounting dimensions before swapping.
Airtac ACP Compact Cylinder ACP40X70 Technical Specifications
| Model | Airtac ACP Compact Cylinder ACP40X70 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X70 |
| Bore size | Ø40 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE40X70 (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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X70 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACP Compact Cylinder ACP40X70
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| 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 ACP Compact Cylinder ACP40X70 Is Used
CNC fixture clamping
With 628.3 N push at 0.5 MPa, the 40 mm bore clamps steel brackets in machining fixtures where the 70 mm stroke clears the part for loading.
Packaging line pushers
The short body slots beside conveyor frames; at 30-500 mm/s it kicks cartons between lanes without stealing guard space.
Assembly press assist
About 38 kg of vertical push at 0.5 MPa seats bearings and bushings in small assembly stations, with the fixed TPU bumper softening end-of-stroke contact.
Replacing the Airtac ACP Compact Cylinder ACP40X70 with the ACE40X70
At 40 mm bore you sit between the 32 mm size (402.1 N push at 0.5 MPa) and the 50 mm size (981.7 N push at 0.5 MPa), so step up to 50 mm if your jig needs more than about 600 N of working force. The 70 mm stroke is well inside the 200 mm maximum standard stroke for this bore, so it is a catalogue item. Note that a plain ACP does not hold position when air is lost - add a rod lock or pilot check valve for held loads. FA/FB flange, LB foot and CA/CB clevis mountings bolt to the same face, and the -S magnet option pairs with CMSE / DMSE switches. For new projects, specify the ACE40X70 instead.
Replacement checklist
- ✓ Current-production ACE → ACE40X70
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACP Compact Cylinder ACP40X70 FAQ
At 0.5 MPa the ACP40X70 gives 628.3 N push and 571.8 N pull; at 0.7 MPa it reaches 879.6 N push and 800.5 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. It is double acting, runs on 0.15-1.0 MPa (22-145 psi) air, and moves at 30-500 mm/s with a fixed TPU bumper at both ends.
No - the ACP series is discontinued. The current-production replacement is the ACE40X70 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, and order the -S magnet code on the ACE if you need CMSE / DMSE switch position sensing.
Request a Quote for the ACE40X70
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X70 replacement — usually within 7-8 hours.