Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 175mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 145–175mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke175 mm
- Adjustable145–175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30
The AirTAC MBLCJ20X175-30 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and a screw-tunable air cushion at both ends. The rear stopper lets you trim up to 30 mm of travel, yielding a usable stroke window of 145-175 mm. Delivering 157 N push and 132 N pull at 0.5 MPa, it suits lighter-duty positioning tasks over its 175 mm span.
This model uses a G1/8 port and an Ø8 mm carbon-steel rod with 20 µm hard-chrome plating to resist scuffing. The riveted rolling-packed aluminum barrel keeps the body light for tight spaces, while the adjustable cushion slows the piston near end-caps to absorb kinetic energy. Note this SKU lacks a built-in magnet, so it cannot host a CMSG or DMSG position sensor.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 175 mm |
| Adjustable window | 145–175 mm (trim 30 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×175 | Nominal stroke length in mm. |
| -30 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 Is Used
PCB Depaneling Router
Moves the cutting head across a 175 mm axis; the 157 N push handles the tool feed while the tuned cushion prevents jarring stops at the cut end.
Label Dispenser Stroke
Adjusts the peel plate within a 145-175 mm window; the rear stopper sets the exact blade position for varying label widths without needing a lock.
Small Parts Ejector
Kicks lightweight molded parts from a conveyor chute; the 132 N pull retracts the 8 mm rod quickly while the air cushion softens the return impact.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 the Right Cylinder?
For a 20 mm bore, the 157 N thrust at 0.5 MPa is ideal for low-force tasks. If you need less force, there is no smaller MBL bore, but if your payload increases, step up to the 25 mm bore which provides 245 N push. Choose this MBLCJ over the MBLJ if your 175 mm move carries enough mass to warrant tunable end-deceleration instead of a fixed rubber bumper, or over the MBLC if you need to fine-tune the end position.
Remember that the rear adjuster is a travel stop, not a load-holding brake; the rod drifts without live air pressure, and the cushion only decelerates. Mounting is restricted to Basic, FA flange, or LB foot brackets (no SDB pivot or back-cover). For a drop-in replacement, match bore 20, stroke 175, 30 mm adjust, G1/8 PT thread, no magnet, and basic mounting. Because the stroke is 175 mm, the small 8 mm rod requires an external guide to prevent side-load bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X175-30 FAQ
It delivers 157 N push and 132 N pull at 0.5 MPa, 220 N push at 0.7 MPa, and a maximum of 32 kgf at 1.0 MPa. The rear adjuster trims up to 30 mm of travel, providing a usable stroke window of 145 to 175 mm.
No, this specific SKU lacks the -S magnet option, so it cannot accept AirTAC CMSG (reed) or DMSG/EMSG (electronic) sensor switches. You would need to specify an MBLCJ20X175-30S model to enable rod position detection.
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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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