Airtac MAC Stainless Steel Mini Air Cylinder MAC40X125SCASDB
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X125SCASDB is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 125mm 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
- Stroke125 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 MAC40X125SCASDB
Mount it once and it pivots forever: the MAC40X125SCASDB combines the 40 mm bore, 125 mm stroke MAC cylinder with an SDB pivot bracket on the rear cover, giving a swing mounting that tracks linkage arcs without shims or re-alignment. Push is 628.3 N and pull 527.8 N at 0.5 MPa, double acting with a variable air cushion at each end to tune the stop. The riveted stainless barrel and hard-chrome 16 mm rod shrug off the coolant mist and condensation that eat painted mini cylinders, across 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s.
Working the numbers: keep steady loads near 377 N at 0.5 MPa, about 60% of rated push, and the cylinder will tolerate pressure sag and seal wear without stalling. A magnet is part of every MA-series piston as standard, so CMSG, DMSG or EMSG reed switches sense both stroke ends the day it is installed - no special-order piston, no external flags.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X125SCASDB Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X125SCASDB |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 125 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 MAC40X125SCASDB
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×125 | 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 MAC40X125SCASDB Is Used
Dock leveler latch
Pulls the safety latch on a loading-dock leveler; the pivot mount follows the plate as it tilts and 527.8 N of pull retracts the pin.
Case turning arm
Rotates a case 90 degrees on a packaging infeed; the SDB pivot tracks the arc and the cushion stops the arm without jarring the box.
Mix vessel lid lift
Raises a 30 kg stainless lid on a 200 L mix vessel - half the 64 kg vertical rating gives a 2:1 margin - then cushions it open.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X125SCASDB the Right Cylinder?
Choose a 32 mm bore when 402.2 N at 0.5 MPa is plenty, or move to a 50 mm bore (981.3 N) for heavier gate and press duties; the 40 mm covers the wide middle ground. Remember the MAC holds nothing on lost air - a centred valve lets the rod drift under load - so pair it with a pilot check valve or rod lock where position must persist. The SDB bracket plus CA pivot eye covers most swing-link frames; FA flanges and LB feet bolt to the same body for rigid mounts. Guide any side load externally over the 125 mm stroke to protect the rod bushing.
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 MAC40X125SCASDB FAQ
At 0.5 MPa: 628.3 N push, 527.8 N pull. At 0.7 MPa: 879.6 N push, 738.9 N pull. Theoretical maximum force is 128.1 kgf at 1.0 MPa. Connections are 1/8" ports with an M12x1.25 thread on the 16 mm rod.
It bolts a pivoting rear mounting to the same round stainless body, so the cylinder can follow a linkage arc on gates, arms and levers without fabricating a bracket. The CA pivot eye and the LB foot or FA flange options cover fixed-mount frames, and every version keeps the standard magnet for CMSG / DMSG / EMSG switches.
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