Airtac MAC Stainless Steel Mini Air Cylinder MAC40X260SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X260SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 260mm 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
- Stroke260 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 MAC40X260SU
Bore 40 force spread across a 260 mm working stroke is a useful combination for gates, pushers and transfer fingers: 628 N out and 527.8 N back at 0.5 MPa, 879.6 N once supply hits 0.7 MPa, and 128.1 kgf as the theoretical limit. The stainless round barrel and hard-chrome plated 16 mm rod stand up to washdown and outdoor air where painted minis blister and rust.
Both ends carry a variable air cushion, which matters at 260 mm because the rod has room to build real speed between stops. A magnet rides in the piston as standard, ready for CMSG, DMSG or EMSG switch feedback. Allow roughly 377 N of usable push at 0.5 MPa in your sizing - the equivalent of hoisting a 32 kg part dead vertically with a 2:1 margin built in.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X260SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X260SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 260 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 MAC40X260SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×260 | 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 MAC40X260SU Is Used
Pallet-layer pushers on palletisers
Squares layer stacks on a palletising table, using the 260 mm stroke to true a full layer before strapping.
Reject gates on checkweigher lines
Pushes off-spec packs off a checkweigher belt, with the cushions absorbing the repeated end-of-stroke impact.
Sample handling in lab automation
Advances sample racks into an analyser drawer, where the stainless body tolerates the humid, washable lab environment.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X260SU the Right Cylinder?
Its neighbours bracket it neatly: 402 N from a bore 32 at 0.5 MPa, 981 N from a bore 50, and 628 N here in between. At 260 mm the rod is long enough to buckle or whip under off-axis load, so guide the payload in slides or rails rather than letting the rod carry side thrust. Because a standard MAC free-floats when air is removed - cushions are not a brake - a rod lock or pilot check valve is needed wherever a mid-stroke load must stay put. Mount on the U flat-end back cover or add FA flange, LB foot and SDB pivot brackets; the built-in magnet works with the whole switch family.
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 MAC40X260SU FAQ
Expect 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push and 738.9 N pull at 0.7 MPa, and a theoretical 128.1 kgf peak at 1.0 MPa. It runs on 40 um filtered air at 0.15-1.0 MPa (22-145 psi), tolerates 1.5 MPa (215 psi) proof pressure, and cycles between 30-800 mm/s.
Back the cushion needle screws fully off at first run, then close them gradually until stops are firm but not harsh. The U flat-end back cover bolts to a flat plate, while CA pivot and CM round-end covers and FA flange, LB foot or SDB pivot brackets handle other frames. Ports are 1/8", the 16 mm rod ends in an M12x1.25 thread, and the standard piston magnet suits CMSG, DMSG and EMSG switches.
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