Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X65-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X65-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 65mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke65 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 MAJ20X65-10S
Fine trim is the whole point of the MAJ20X65-10S: a 10 mm adjustable window around its 65 mm extend stroke, set by an external stop screw, so toolmakers can zero in on the exact home position without shimming. Double-acting, 0.15-1.0 MPa (22-145 psi), 30-800 mm/s, with riveted stainless-steel construction.
The 20 mm bore pushes 157 N at 0.5 MPa - treat about 94 N as your working force and expect roughly 8 kg of vertical lift capacity at a 2:1 margin. The hard-chrome plated 8 mm rod and grease-retaining two-way piston seal keep friction low over millions of cycles, and because the magnet ships standard, CMSG / DMSG / EMSG reed switches bolt on with no special-order piston.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X65-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X65-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 65 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 MAJ20X65-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| -10 | 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 MAJ20X65-10S Is Used
Sample pusher on lab autoloaders
Advances sample trays into an analyzer's read position; the 10 mm trim window lets engineers align the stop without re-machining the bracket.
Bottle gate on a bottling line
Gates PET bottles at the filler infeed, where daily hose-down makes the stainless barrel a real advantage over painted minis.
Lid press on cosmetic filling
Presses snap-on caps with about 94 N of usable force, ending each press against the fixed bumper for a quiet, repeatable stop.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X65-10S the Right Cylinder?
If 157 N at 0.5 MPa is marginal, the 25 mm bore gives 245.3 N; if you are oversized, the 16 mm bore still offers 100.5 N. Ports are 1/8" on this bore and the rod thread is M8x1.25. Pick FA flange or LB foot mounting, add an I or Y knuckle for linkage work - the adjustable series has no SDB variant.
Remember the adjuster only shortens the extend stroke and acts as a stop, not a brake: under gravity or spring load the rod will move if supply air fails.
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 MAJ20X65-10S FAQ
Bore 20 mm, double-acting: 157 N push and 132 N pull at 0.5 MPa, rising to 220 N push and 185 N pull at 0.7 MPa, with a 32 kgf theoretical peak at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi).
Yes - every MA-series cylinder, including the MAJ20X65-10S, ships with the piston magnet built in as standard. CMSG, DMSG and EMSG switch series mount directly on the stainless barrel for end-of-stroke signaling.
Authorized Export Seller
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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