Testing statement: Firebusters has not personally tested these cement mixers. This comparison is based on current BAUMR-AG and Edisons specifications. Product specifications, inclusions and availability can change, so confirm the current listing and manual before purchase or use.
BAUMR-AG 135L vs 140L Cement Mixer
The BAUMR-AG 135L and CMS-14 140L are both corded electric rotating-drum cement mixers, but they are not simply the same machine with a five-litre difference.
The 135L uses an 800W motor, a 566mm steel drum and pneumatic tyres. The newer CMS-14 140L uses a 550W motor, the same published 566mm drum diameter, solid 10-inch wheels and includes a pedestal stand.
135L vs 140L Specifications
| Specification | BAUMR-AG 135L | BAUMR-AG CMS-14 140L |
|---|---|---|
| Model / SKU | CONMIXBMRB1K4 | CMS-14 / TOLCCMBM1C4A |
| Power | 800W | 550W |
| Supply | Corded electric, Australian-standard plug listed | 240V, 10A Australian-standard plug |
| Published drum capacity | 135L | 140L |
| Drum diameter | 566mm | 566mm |
| Drum opening | 385mm | Not published in current specification |
| Drum speed | 26.6rpm | 32rpm |
| Drum construction | Heavy-duty steel | Heavy-gauge steel |
| Mixing blades | Dual blades | 2 steel blades |
| Wheels | Pneumatic tyres | 10-inch solid rubber |
| Pedestal stand | No separate pedestal listed | Included |
| Product dimensions | Not currently published | 73 × 129 × 139cm including stand |
| Product weight | Not separately published; carton gross weight 51kg | 56kg |
| Carton weight | 51kg gross | 59kg |
BAUMR-AG 135L Cement Mixer
135L · 800W Electric Drum Mixer
Steel-drum mixer with an 800W motor, 566mm drum diameter, 385mm mouth, 26.6rpm drum speed, pneumatic tyres and multi-position tipping mechanism.
Check 135L Price & Availability →
Sponsored affiliate link.
135L Verified Specifications
- SKU: CONMIXBMRB1K4
- Power: 800W
- Power type: corded electric
- Plug: Australian-standard plug listed
- Drum capacity: 135L
- Drum diameter: 566mm
- Drum mouth: 385mm
- Drum speed: 26.6rpm
- Drum: heavy-duty steel
- Ring gear: cast iron
- Wheels: pneumatic
- Controls: supplier states IP55-rated controls
- Package: approximately 77 × 69 × 45cm
- Gross packaged weight: approximately 51kg
BAUMR-AG CMS-14 140L Cement Mixer
CMS-14 · 140L · 550W with Pedestal
A 140L steel-drum model with a 550W motor, 240V 10A supply, 32rpm drum speed, solid rubber wheels and a supplied pedestal stand.
Check 140L Price & Availability →
Sponsored affiliate link.
140L Verified Specifications
- Model: CMS-14
- SKU: TOLCCMBM1C4A
- Power: 550W
- Voltage: 240V
- Plug: 10A Australian-standard
- Published capacity: 140L
- Drum diameter: 566mm
- Drum speed: 32rpm
- Drum: heavy-gauge steel
- Mixing blades: 2 steel blades
- Wheels: 10-inch solid rubber
- Pedestal stand: included
- Dimensions: approximately 73 × 129 × 139cm including stand
- Product weight: approximately 56kg
- Carton: approximately 68 × 77.5 × 42cm
- Carton weight: approximately 59kg
135L vs 140L Does Not Mean Batch Size
This is one of the most important points when buying a cement mixer.
A drum labelled 135L or 140L should not automatically be interpreted as meaning that you should load that exact volume of wet concrete into each batch.
The ingredients need free space inside the rotating drum so they can lift, fall and mix.
Actual usable batch size depends on:
- aggregate size
- concrete or mortar mix
- water content
- material weight
- drum angle
- manufacturer loading limits
Is the 140L Really Much Larger?
Not necessarily.
Both current specifications list a 566mm drum diameter.
The published nominal capacity increases from 135L to 140L — a difference of only five litres.
The more important differences are actually:
- 800W versus 550W motor rating
- 26.6rpm versus 32rpm drum speed
- pneumatic versus solid tyres
- pedestal stand on the CMS-14
- different frame and tipping arrangements
Does the 800W 135L Automatically Mix More?
No.
The 135L has a higher published motor wattage than the 140L, but wattage alone does not establish useful batch capacity, durability or mixing quality.
Motor gearing, drum speed, blade shape and loading all affect how a mixer performs.
Similarly, the CMS-14’s 550W rating should not automatically be treated as inferior simply because the number is lower.
The 140L Pedestal Stand
The CMS-14 includes a pedestal stand that raises the mixer for discharge into compatible wheelbarrows, buckets or raised work areas.
This can be useful where the discharge height matches your normal workflow.
However, the complete unit measures approximately 139cm high with the stand, so check storage height and available working space before ordering.
Pneumatic vs Solid Wheels
135L Pneumatic Tyres
Pneumatic tyres can absorb some surface irregularities when moving the mixer around a site.
They also introduce tyre-pressure and puncture maintenance.
140L Solid Rubber Wheels
The CMS-14 uses 10-inch solid rubber wheels.
These avoid punctures but can transmit more vibration over rough surfaces.
Neither wheel arrangement means the mixer should be moved while loaded with concrete unless specifically permitted by the manufacturer.
Drum Opening
The 135L has a published drum-mouth diameter of 385mm.
This is useful when loading materials by shovel or bucket.
The current CMS-14 specification does not publish an exact mouth diameter.
If drum-opening size matters to your batching setup, confirm it directly with the supplier rather than assuming it is the same as the 135L.
Electrical Supply
The CMS-14 specification clearly states:
- 240V operation
- 10A Australian-standard plug
- 550W motor
The current 135L listing states an 800W corded-electric motor and an Australian-standard plug.
Always check the rating plate on the machine supplied.
Use electrical equipment through a suitable supply and protection arrangement for the worksite.
Do not operate with damaged leads, plugs or switches.
Water and Electrical Equipment
The 135L supplier states that its controls are IP55 rated.
That statement applies to the rated controls and should not be interpreted as meaning the entire mixer is waterproof.
The CMS-14 includes a protective motor cover intended to shield components from dust, debris and splashes.
Neither feature is a reason to deliberately operate an electric mixer in unsafe wet conditions.
Assembly
Both mixers require owner assembly.
The CMS-14 package includes the mixer and pedestal stand, with the current manual available online.
The 135L package includes the mixer and user manual.
Firebusters has not found a current official assembly-time figure, so we have not repeated estimates such as “40–60 minutes”.
Assembly time will depend on experience, tools and whether another person assists with handling larger components.
Handling and Weight
These are not lightweight parcels.
- 135L: approximately 51kg gross packaged weight
- 140L: approximately 56kg assembled product weight and 59kg packaged weight
Plan delivery, unpacking and assembly rather than assuming one person can safely lift an entire mixer.
Cleaning After Mixing
Concrete and mortar should not be allowed to harden inside the drum.
After use:
- follow the manufacturer’s shutdown procedure
- disconnect electrical power before maintenance where required
- clean the drum before material cures
- avoid directing water onto electrical components
- inspect blades and drum for remaining hardened material
Do not reach into or work on the drum while the mixer can operate.
135L, 140L or 100L Pan Mixer?
The BAUMR-AG 100L pan mixer is a different style of machine and should not be confused with either of these rotating-drum mixers.
A drum mixer lifts material and allows it to tumble through the drum.
A pan mixer uses a different mixing arrangement within a stationary or differently configured vessel.
This means a 100L pan mixer is not automatically “smaller and weaker” simply because its litre figure is lower.
Choose between a drum mixer and pan mixer according to the material being mixed and the manufacturer’s intended use — not litre capacity alone.
Which BAUMR-AG Drum Mixer Should You Investigate?
| Feature | 135L | 140L CMS-14 |
|---|---|---|
| Higher published motor wattage | ✓ 800W | 550W |
| Pedestal supplied | Not separately listed | ✓ Yes |
| Pneumatic tyres | ✓ Yes | No — solid rubber |
| Published drum opening | ✓ 385mm | Not published |
| Known assembled dimensions | Not currently published | ✓ 73 × 129 × 139cm |
Frequently Asked Questions
Is the 140L mixer much bigger than the 135L?
No. The nominal difference is only five litres, and both current specifications list a 566mm drum diameter.
Does a 140L mixer make 140L of concrete per batch?
Do not assume that. Firebusters could not verify a separate official recommended wet-batch capacity matching the total drum figure.
What is the 135L drum opening?
Approximately 385mm.
What is the 140L drum opening?
The current supplier specification does not state it.
Which has the larger motor?
The 135L has an 800W published motor compared with 550W for the CMS-14 140L.
What power does the CMS-14 need?
The current specification states 240V with a standard Australian 10A plug.
How heavy is the 140L model?
Approximately 56kg assembled, with a packaged weight of approximately 59kg.
How heavy is the 135L?
The current official listing gives a gross packaged weight of approximately 51kg. A separate assembled product weight is not clearly stated.
Does the 140L include its pedestal?
Yes. The current CMS-14 package includes the pedestal stand.
Are the mixers waterproof?
Do not treat either complete machine as waterproof. The 135L supplier specifically refers to IP55-rated controls, while the 140L has a protective motor cover.
How long do they take to assemble?
No reliable current manufacturer assembly-time figure was found. Assembly is required, and actual time will vary.
Final Assessment
The BAUMR-AG 135L and CMS-14 140L are closely sized electric drum mixers, but their practical differences are larger than the five-litre capacity gap suggests.
The 135L provides an 800W motor, 385mm drum opening, 26.6rpm drum speed and pneumatic wheels.
The CMS-14 140L provides a 550W motor, 32rpm drum speed, 10A 240V supply, solid wheels and an included pedestal stand.
Firebusters recommendation: do not choose the 140L simply because the nominal drum capacity is five litres larger. Compare the pedestal, motor, wheels, drum access, storage dimensions and electrical setup against how you actually intend to batch and discharge material.
Research Sources
-
Edisons – BAUMR-AG 135L Cement Mixer
-
Edisons – BAUMR-AG CMS-14 140L Cement Mixer
-
BAUMR-AG – 135L Cement Mixer
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BAUMR-AG – CMS-14 140L Cement Mixer
Specifications, availability, package contents and warranty terms can change. Check the current product listing and manual before purchase, assembly or operation.
About the author and safety review
Ken Walker
Former Station Officer and fire service educator
Fire and emergency service educator with 40 years of career and volunteer experience.
Qualifications: Associate Diploma of Applied Science in Fire Technology; Institute of Fire Engineers studies.
Author profileGeneral information only. Follow official warnings, local procedures and manufacturer instructions.
