Airtac MAC Stainless Steel Mini Air Cylinder MAC40X145SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X145SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 145mm 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
- Stroke145 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 MAC40X145SCA
A 145 mm reach sets the MAC40X145SCA apart within the cushioned MAC family, bridging longer linkages while the 40 mm bore still delivers 628 N on extension and 528 N on retraction at 0.5 MPa; at 0.7 MPa the figures climb to 880 N and 739 N. Being double acting, air moves the rod both ways, and the variable cushion at each end is turned in with the needle screws to stop a fast slide without hammering the covers.
The CA pivot back cover lets a lever arm rotate cleanly on a pin, with FA flange, LB foot and SDB pivot brackets available for the frame side. Vertically this bore will hoist about 64 kg, but halve that to 32 kg for a 2:1 margin on starts and stops. The magnet arrives fitted as standard, so CMSG / DMSG / EMSG switches clamp onto the stainless barrel from day one.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X145SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X145SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 145 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 MAC40X145SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×145 | 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 MAC40X145SCA Is Used
Cross-belt diverter arm
Swinging a deflecting arm across a parcel belt on a sorting line; the 145 mm stroke clears the belt edge while 628 N shoves the parcel off.
Lift stage for fixture loading
Raising a 30 kg weld fixture into position, comfortably inside the 32 kg margin-limited vertical rating of this bore.
Reject pusher at an inspection camera
Tipping rejected parts off a vision-inspection conveyor; the cushion quiets the knock and the magnet confirms return to rest.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X145SCA the Right Cylinder?
Forces land between bores: 402 N from a 32 mm cylinder and 981 N from a 50 mm one at 0.5 MPa bracket the 40 mm class, so choose this size when sustained load stays under about 377 N. The port is 1/8" and the rod thread M12x1.25 across the 20-40 mm bores.
Remember the cylinder cannot hold itself: when the valve centres or supply drops, the piston coasts until something stops it, so fit a rod lock or pilot check valve for hanging loads. The 145 mm stroke magnifies side-load leverage on the 16 mm rod, so guide the load externally on long transfers, and mount via the CA pivot eye or flange, foot and SDB brackets.
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 MAC40X145SCA FAQ
Push 628 N and pull 528 N at 0.5 MPa; push 880 N and pull 739 N at 0.7 MPa; theoretical maximum about 128 kgf at 1.0 MPa. Stroke 145 mm, bore 40 mm, ports 1/8", rod thread M12x1.25, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Back both needle screws fully off, run the cylinder at low speed, then close each screw gradually until the end-of-stroke knock disappears. This protects the aluminium covers when the 145 mm stroke moves heavier or faster loads.
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