Airtac MAC Stainless Steel Mini Air Cylinder MAC40X80SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X80SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MAC40X80SCM
The MAC40X80SCM pairs a round stainless-steel barrel with an 80 mm stroke and a round-end (CM) back cover, so it bolts onto a clevis-style pivot without extra hardware. It is double acting - air drives the piston both out and back - and a variable air cushion at each end absorbs end-of-stroke shock, so you can run faster or carry heavier loads without hammering the covers. A magnet is built into the piston as standard, so CMSG, DMSG or EMSG reed switches drop straight on.
At 0.5 MPa this 40 mm bore pushes with 628.3 N (pulls 527.8 N), which means roughly 377 N of the rating is realistic for steady work. Frame it vertically and that corresponds to lifting about 32 kg with a 2:1 margin. The hard-chrome plated 16 mm rod shrugs off washdown and damp shop air far better than painted-steel minis, and the two-way piston seal carries its own grease.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X80SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X80SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MAC40X80SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 MAC40X80SCM Is Used
Pouch filler clamping
Holds heat-seal jaws closed on a pouch filling machine, where 628 N of jaw pressure seals laminate film cycle after cycle.
Bottling gate lift
Raises and lowers a lane gate on a bottling conveyor; the 80 mm stroke clears tall bottles and the cushion stops the gate slamming.
Casting test push-off
Pushes finished aluminium castings off a leak-test fixture, working comfortably within about 377 N of usable force at 0.5 MPa.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X80SCM the Right Cylinder?
Compare before you commit: a 32 mm bore of the same family gives about 402 N at 0.5 MPa, while a 50 mm bore reaches 981 N - this 40 mm size with 628 N suits mid-range clamping and lifting. Remember the rod moves under a plain air signal only; if a dropped load cannot be tolerated, add a pilot check valve or a rod lock. The CM round-end cover suits clevis pins and link arms, and FA flange, LB foot or SDB pivot brackets can be ordered alongside. Keep side loads off the 16 mm rod or guide the moving part externally to avoid 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 MAC40X80SCM FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa that becomes 879.6 N push and 738.9 N pull, peaking at 128.1 kgf theoretical at 1.0 MPa. Air ports are 1/8" on this 40 mm bore, the rod is 16 mm with an M12x1.25 male thread, and the operating range is 0.15-1.0 MPa (22-145 psi).
Back both cushion needle screws fully off before first operation, then close them gradually while cycling until end-of-stroke knock disappears at your chosen speed. The cushion adjusts deceleration but never locks the piston - when air is lost the rod coasts, so a separate rod lock or check valve does the holding.
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