This model is discontinued
AirTAC has phased out the MALJ series. You can still order this code here: we ship the direct replacement MBLJ20X125-10S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S
The AirTAC MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 10 mm, giving a usable end-position window from 115 to 125 mm. This model is discontinued — the direct replacement is the MBLJ20X125-10-S.
- BoreØ20 mm
- Stroke125 mm
- Adjust window115–125 mm
- Port sizeG1/8
- Rod threadM8×1.25
- StatusDiscontinued → MBLJ20X125-10-S
- 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 MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S
The AirTAC MALJ20X125-10-S is a discontinued double-acting double-rod mini cylinder with a rear adjustable stroke. The -10 code means you can trim up to 10 mm at the rear, creating a usable stroke window of 115-125 mm. The direct replacement is the MBLJ20X125-10-S, matching the 125 mm stroke, G1/8 port, and FA/LB mounting.
This -S SKU includes a magnet for position sensing. The older MALJ threaded-cover body uses CS1-M or DS1-M switches, whereas the MBLJ upgrade features a riveted rolling-packed body and takes CMSG, DMSG, or EMSG sensors. The rear adjuster acts as a travel stop to fine-tune reach without external bolts, but it will not hold a load without live air. End impact is softened by a fixed rubber bumper, not an adjustable air cushion.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S Technical Specifications
| Model | Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ20X125-10-S |
| Bore size | Ø20 mm |
| Stroke | 125 mm |
| Adjustable window | 115 – 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 300 mm |
The rear adjuster is a travel stop, not a lock — it sets the end position but does not hold the load without live air. No back-cover code and no SDB on adjustable-stroke. The MBLJ20X125-10-S carries the same ratings.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 132 N | 132 N |
| 0.7 MPa | 185 N | — |
| Max (@1.0 MPa) | 27 kgf | |
MALJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod MAL push of the same bore. The MBLJ20X125-10-S matches these values.
Model Code: Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 20 | Bore size in mm (20/25/32/40). |
| ×125 | Nominal stroke length in mm. |
| -10 | Adjustable amount: trim the end to a 115–125 mm window. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLJ uses CMSG/DMSG/EMSG). |
Replacement: MALJ → MBLJ. No back-cover (CA/U/CM) and no SDB. Mounting: FA / LB.
Where the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S Is Used
Dispenser Valve Depth
Sets a precise depth stop for a glue dispensing nozzle on an electronics assembly line, trimming 10 mm off the rear travel to prevent syringe crash damage.
Light Lever Actuation
Triggers a small pneumatic clamping lever in a packaging machine where the 132 N pull force safely retracts the arm within a tight 115-125 mm window.
Replacing the Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S with MBLJ20X125-10-S
To replace this MALJ20X125-10-S with the MBLJ20X125-10-S, confirm the 20 mm bore, 125 mm stroke, 10 mm adjust code, G1/8 PT port, and FA or LB mounting. There is no back cover or SDB option. You must also change your sensors: the MALJ -S magnet works with CS1-M/DS1-M switches, while the MBLJ uses CMSG/DMSG/EMSG. Remember the adjuster is a stop, not a lock, so add an external lock for held loads.
At 125 mm stroke, the 8 mm rod is manageable but avoid excessive side loads to prevent rod bending.
Upgrade checklist
- ✓ Order the MBLJ20X125-10-S (same bore/stroke/adjust)
- ✓ Same 115–125 mm adjustable window
- ✓ Adjuster is a stop, not a lock
- ✓ No back cover / SDB — plan an FA/LB mount
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check The rear adjuster sets the end position — it is not a load lock.
- check No back-cover / SDB on adjustable-stroke — use FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLJ20X125-10-S instead of this discontinued model.
Airtac MALJ20 Adjustable Mini Cylinder MALJ20X125-10-S FAQ
Yes, the MALJ20X125-10-S is discontinued. The direct replacement is the MBLJ20X125-10-S, which matches the 20 mm bore, 125 mm stroke, 10 mm adjust code, G1/8 port, and FA/LB mounting. You will need to upgrade your sensors from the old CS1-M/DS1-M switches to the CMSG/DMSG/EMSG family.
The -10 adjust code lets you trim the rear position by up to 10 mm, giving a usable stroke window of 115-125 mm. The adjuster is a travel stop, not a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
Direct Upgrade
The MBLJ20X125-10-S replaces this model 1:1.
Fast Dispatch
MBLJ replacements are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Recommended AirTAC MBLJ Replacements
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