Airtac MAC Stainless Steel Mini Air Cylinder MAC40X35SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X35SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 35mm 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
- Stroke35 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 MAC40X35SU
With a 40 mm bore and a short 35 mm throw, this MAC cylinder is built for straight push-and-pull work: it drives 628.3 N at 0.5 MPa and up to 879.6 N at 0.7 MPa while running anywhere from 30 to 800 mm/s. Double acting with a variable air cushion at both ends, it lands loads gently even at the top of its speed range.
Inside, the piston rides in a rolled stainless-steel tube and the rod carries a 20 um hard-chrome plate, so damp workshops and light washdown do not eat the barrel. The U flat-end back cover bolts flat against a machine face with no adapter plate, every unit ships with the magnet fitted for CMSG, DMSG or EMSG switches, and the bore is the equivalent of lifting about 64 kg vertically, or 32 kg if you keep a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X35SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X35SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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 MAC40X35SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 MAC40X35SU Is Used
CNC saw clamp
Pushes a clamping shoe against aluminium extrusion at a saw station, holding 628 N of grip through the cut with the flat-end cover bolted to the frame.
Checkweigher ejector
Ejects off-weight packages sideways off a checkweigher belt with a fast 35 mm jab, cushioned so the pusher does not hammer its stops.
Benchtop press insert
Seats bushings into small pump housings on an assembly-bench press, where the short throw and 879 N at 0.7 MPa give crisp, repeatable seating.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X35SU the Right Cylinder?
Compare bores before you commit: a 32 mm MAC gives 402.2 N at 0.5 MPa, this 40 mm bore gives 628.3 N, and a 50 mm bore jumps to 981.3 N. Port size is 1/8", rod thread M12x1.25, and strokes past 500 mm are made to order. Remember the cylinder will not hold a load when air drops - the piston simply coasts - so a pilot check valve or rod lock is needed wherever a position must be kept. The U back cover plus FA flange, LB foot or SDB pivot covers most fixed mounting needs, and the magnet for CMSG, DMSG and EMSG switches is already inside.
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 MAC40X35SU FAQ
At 0.5 MPa the MAC40X35SU pushes 628.3 N and pulls 527.8 N; at 0.7 MPa it delivers 879.6 N push and 738.9 N pull, with a theoretical peak of 128.1 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) of air filtered to 40 um; proof pressure is 1.5 MPa (215 psi).
The barrel is rolled stainless steel and the 16 mm rod carries a 20 um hard-chrome plate over carbon steel, so splashes, humidity and mild washdown do not rust it out the way painted mini cylinders corrode. Covers are aluminium alloy, and the heterogeneous piston seal stores its own grease.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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