Airtac MAC Stainless Steel Mini Air Cylinder MAC40X85SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X85SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 85mm 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
- Stroke85 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 MAC40X85SCA
A pivot-ready 85 mm stroke cylinder for swing and lever linkages: the MAC40X85SCA carries a CA back cover with an integral pivot eye, so the rod can articulate as the driven arm rotates. The stainless tube is rolled and riveted onto aluminium covers into one sealed shell that stays tight through vibration. It is double acting, and the needle-adjustable cushion at both ends lets you tune deceleration against end-of-stroke shock.
Expect 628.3 N of push and 527.8 N of pull at 0.5 MPa; budget around 377 N of that for sustained duty. As a vertical lift that is roughly 64 kg of raw capability, or about 32 kg once you halve it for a 2:1 margin. The standard piston magnet accepts CMSG, DMSG or EMSG switches for end-of-stroke sensing without a special build.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X85SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X85SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 85 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 MAC40X85SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×85 | 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 MAC40X85SCA Is Used
Welding fixture clamp
Swings a clamp arm over a car-body bracket on a welding fixture; the CA pivot eye follows the arm's arc directly without extra linkage.
Dairy CIP rinse arm
Pivots a rinse arm inside a dairy clean-in-place skid; the stainless barrel tolerates daily washdown where painted bodies pit.
Curing oven lid
Opens the hinged lid of a small curing oven, with 85 mm of travel matched to the lid's lift height and about 32 kg of practical vertical lift.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X85SCA the Right Cylinder?
Size up or down within the same cushioned series: 32 mm bores produce about 402 N at 0.5 MPa and 50 mm bores about 981 N, against 628 N here. A centred valve does not park the piston - the rod will settle under gravity or spring loads - so specify a rod lock or check valve if the arm must stay put. The CA pivot eye takes a clevis pin directly; I and Y rod knuckles and FA, LB or SDB brackets are listed in the same code system. For the 85 mm stroke, keep the driven linkage aligned to prevent rod bending.
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 MAC40X85SCA FAQ
Push 628.3 N and pull 527.8 N at 0.5 MPa; push 879.6 N and pull 738.9 N at 0.7 MPa; 128.1 kgf theoretical maximum at 1.0 MPa. The 40 mm bore takes 1/8" ports, the rod is 16 mm with an M12x1.25 male thread, speed is 30-800 mm/s, and pressure runs 0.15-1.0 MPa (22-145 psi).
Yes - the piston magnet is standard equipment on every MAC, not a paid option. CMSG, DMSG and EMSG reed switches clamp onto the barrel for end-of-stroke or mid-position detection straight out of the box.
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