Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ40 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH
Behind the 150 mm stroke of the MAC40X150SUH sits a 40 mm stainless round barrel riveted to aluminium covers, so the body stays sealed through damp washdown that would chew up painted minis. It is double acting: 628.3 N on extend and 527.8 N on retract at 0.5 MPa, rising to 879.6 N at 0.7 MPa, with a variable air cushion at each end to soften stop impact.
Plan real work around 377 N at 0.5 MPa - about 60% of rated push - and the rod will lift roughly 64 kg vertically, or 32 kg with a 2:1 margin. The built-in magnet is standard, so CMSG, DMSG and EMSG switches clip on without a special piston, and the U flat-end back cover mounts flat against a machine plate.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH Is Used
Shrink-wrap tray pusher
Feeds trays 150 mm into the tunnel at up to 800 mm/s; the variable cushion kills the stop thud on every cycle.
Glassware rinse station
The stainless round barrel and chrome rod ride out repeated washdown, keeping the 150 mm lift link moving in wet labs.
Press die ejector
628 N at 0.5 MPa nudges stamped brackets free of the die; 879.6 N is on tap at 0.7 MPa for stubborn parts.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH the Right Cylinder?
A 32 mm bore (402.2 N push at 0.5 MPa) handles lighter clamping; step up to a 50 mm bore (981.3 N) if the job needs double the muscle. Remember the MAC40X150SUH is a free-drifting double-acting unit - if the load must stay put on air loss, add a rod lock or a pilot check valve. Over 150 mm of stroke, keep side loads off the 16 mm rod with external guides or an SDB pivot; FA flange and LB foot mountings square the body to the machine. The 1/8" port is standard PT, with G and NPT thread options on request.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X150SUH FAQ
At 0.5 MPa it extends with 628.3 N and retracts with 527.8 N; at 0.7 MPa the figures reach 879.6 N and 738.9 N. Theoretical maximum is 128.1 kgf at 1.0 MPa. Working pressure runs 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi).
No - being double acting with a variable air cushion, the piston simply drifts once supply is cut or the valve centres. For loads that must stay put, add a rod lock cylinder or a pilot check valve downstream. Speed range is 30-800 mm/s and the cushion needles should be backed off before first run.
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