Airtac MAC Stainless Steel Mini Air Cylinder MAC40X650SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC40X650SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø40mm bore and 650mm 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
- Stroke650 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 MAC40X650SCA
Stroke dominates this order: 650 mm of travel on a 40 mm bore, built to order because standard MAC strokes stop at 500 mm. Force does not change with length, so you still get 628 N push at 0.5 MPa and 880 N at 0.7 MPa, and the double-acting design with variable air cushions at both ends tames the extra kinetic energy a long stroke builds.
Halving the 64 kgf thrust figure leaves about 32 kg of vertical lift capability at 0.5 MPa with a 2:1 margin, useful when sizing gates or lift fingers across that 650 mm span. The 20 um hard-chrome rod inside a stainless barrel keeps alignment honest over the full travel, and if the project later needs a double rod or an adjustable-cushion variant, the MACD and MACJ cousins share this same force class.
Airtac MAC Stainless Steel Mini Air Cylinder MAC40X650SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC40X650SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 650 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 MAC40X650SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×650 | 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 MAC40X650SCA Is Used
Cross-belt carton pusher
Ejects cartons across 650 mm of belt width in a distribution hub; the cushioned landing keeps the conveyor frame quiet.
Gate lift on a transfer car
Raises a 30 kg gate through the full 650 mm; about 32 kg of vertical capability at 0.5 MPa leaves a 2:1 margin.
Stretch-station actuator
Pulls film taut across a wrapping frame; the built-in magnet feeds a CMSG switch for end-of-travel confirmation.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC40X650SCA the Right Cylinder?
A long thin rod invites side loads, so guide the payload in external linear bearings and keep thrust in line with the bore axis, or rod bending will chew the seals. For scale, the 32 mm bore gives 402 N at 0.5 MPa and the 50 mm bore 981 N, placing this 628 N unit in the mid-duty band. The CA pivot back cover swings on trunnion-style mounts, and because the piston coasts freely with no air, a pilot check valve is the answer where the load has to stay parked. Ports stay 1/8" for this bore.
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 MAC40X650SCA FAQ
At 0.5 MPa: 628.3 N push and 527.8 N pull. At 0.7 MPa: 879.6 N push and 738.9 N pull. The theoretical ceiling at 1.0 MPa is 128.1 kgf. Supply 0.15-1.0 MPa (22-145 psi) and run anywhere from 30 to 800 mm/s.
No. Standard MAC strokes end at 500 mm, so 650 mm is produced to order. Quote the full code MAC40X650SCA and the factory builds the barrel, rod and cushion tuning to that length; the bore keeps its standard 1/8" ports and 16 mm hard-chrome rod.
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