Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 100mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S
On the MAJ20X100-75S the ordered stroke stays at 100 mm, but the external stop screw can be wound through a 75 mm band, trimming the effective extend reach between 75 and 100 mm wherever the cycle needs it. Air drives both directions, so return force is built in.
The bore 20 chamber yields 157 N forward and 132 N back at 0.5 MPa, rising to 220 N forward at 0.7 MPa. Aluminium covers and a stainless block are rolled onto the barrel, giving a compact round body that shrugs off condensation in humid plants. Halving the 157 N push leaves a comfortable vertical lift budget of about 8 kg for light pick stations, and the standard magnet lets EMSG sensors clip on at either cover.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 300 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×100 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S Is Used
Assembly-line part kicker
Swings finished sub-assemblies off a roller conveyor into a tote; the 132 N return force clears the lane quickly at up to 800 mm/s.
Dosing needle lift
Raises a glue or filler needle between shots, with EMSG switches confirming the up position anywhere inside the 75 mm trim band.
Light vertical pick station
Lifts about 8 kg of gripper and part weight in a bench pick unit, holding a 2:1 force margin at 0.5 MPa for smooth starts.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S the Right Cylinder?
Compare both directions of the range: step down to MAJ16 (100.5 N push at 0.5 MPa) for lighter gates or up to MAJ25 (245.3 N) for stiffer clamps; ports stay 1/8" throughout. Note that the stop screw shortens the extend stroke only - it never adds reach past 100 mm, and it is not a mid-stroke lock, so the rod still drifts if air is lost. FA flange and LB foot mounts suit fixed jigging, I and Y knuckles take swivelling links, and the standard magnet pairs with CMSG / DMSG / EMSG switches on either end cover.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X100-75S FAQ
Push is 157 N and pull 132 N at 0.5 MPa, push rises to 220 N at 0.7 MPa, and the theoretical maximum is 32 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) filtered air, expect a 1.5 MPa (215 psi) proof rating, speeds of 30-800 mm/s and a 1/8" port.
No - every MAJ cylinder carries a built-in magnet as standard equipment, so CMSG, DMSG and EMSG sensors clip straight onto the stainless barrel to signal either end of the trimmed extend stroke, with no special-order piston or waiting time.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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