Imer Workman II Concrete Mixers - 1105850
Mix Perfect Mortar, Stucco, Grout or Concrete with This Towable Multi-mixer. The Workman II 250 Multi-mixers are the contractor’s choice for heavy-duty mixers. IMER’s steel drum towable mixers are easy to use, easy to maintain, durable, reliable and long-lasting. Available in a full range of sizes and engine and motor configurations.
Features
- Workman II 250 - 9 cu ft capacity, steel drum with 6 cu ft output
- Workman II 350 - 12 cu ft capacity, steel drum with 9 cu ft output
- 20" pneumatic wheels for towing
- "Posi-lock" system to stop the drum anywhere
- Aggressive paddles to mix fast and complete
- Forklift pockets
- Commercial duty tow hitch
- Spare tire
Specifications
| Model |
Workman II 250 |
Workman II 350 |
| Gas Engine |
5.5 hp Honda GX-160 |
5.5 hp Honda GX-160 |
| Electric Motor Rating |
1.5 hp, 120/240 V |
1.5 hp, 120/240 V |
| Drum Capacity |
9 cu ft |
12 cu ft |
| Batch Output |
6 cu ft |
9 cu ft |
| Drum Diameter |
29-1/2" |
34-3/4" |
| Discharge Outlet Height |
27-3/4" |
26-1/2" |
| Wheel Size |
20" |
20" |
| Dimensions l/w/h |
72" x 50" x 55" |
76-1/2" x 50" x 56" |
| Boxed Dimensions l/w/h |
80" x 50" x 68" |
86" x 50" x 72" |
| Weight |
525 lb |
650 lb |
What our Experts Think
-
Heavy-duty towable contractor mixer
The Imer Workman II Concrete Mixer 1105850 is a professional-grade site mixer built for high-volume concrete, mortar, and grout mixing, designed for continuous job-site use.
-
Strong 9 cu ft steel drum capacity
The Workman II 250 version delivers a 9 cu ft drum with ~6 cu ft batch output, making it ideal for foundations, slabs, driveways, and masonry work.
-
Powerful Honda 5.5 HP engine
Equipped with a reliable Honda GX160 petrol engine, it ensures consistent torque for heavy mixes without stalling under load.
-
Job-site durability by design
Built on a reinforced steel frame with sealed gearbox drive, it’s engineered for low maintenance, long service life, and rugged construction environments.
-
Towable & highly mobile
Comes with 20” pneumatic wheels, hitch system, and torsion bar suspension, allowing smooth transport between sites even on rough terrain.
-
Efficient mixing performance
Internal paddle design ensures fast, uniform mixing of concrete, stucco, mortar, and grout with minimal segregation.
-
Posi-lock safety discharge system
The drum includes a locking mechanism for controlled dumping at any angle, improving safety and precision during pouring.
-
Expert insight
This is a true contractor-level mixer, not a DIY unit—built for productivity on repetitive, high-volume construction tasks where reliability matters more than portability.
Q&A
Q1: What is the Imer Workman II 1105850 used for?
A: It is a heavy-duty towable concrete mixer designed for mixing concrete, mortar, stucco, and grout on construction job sites.
Q2: What is the drum capacity of the Workman II 1105850?
A: It features a 9 cu ft (250 L) steel drum capacity, with an approximate 6 cu ft batch output per mix.
Q3: What engine does this model use?
A: The 1105850 version is powered by a 5.5 HP Honda GX gasoline engine, built for reliable heavy-duty operation.
Q4: Is the Workman II suitable for job-site towing?
A: Yes, it is a road-towable mixer with pneumatic wheels, hitch system, and suspension, making transport between sites easy and stable.
Q5: What materials can it mix?
A: It is designed for concrete, mortar, stucco, grout, and similar строитель (construction) mixes, making it highly versatile.
Q6: How does the mixing system perform?
A: It uses a heavy-duty steel drum with internal paddles that ensure fast, consistent, and uniform mixing for professional results.
Q7: What safety and control features does it include?
A: It includes a POSI-LOCK drum system that locks the drum position automatically for controlled dumping and safer operation.
Q8: Is it built for long-term durability?
A: Yes, it has a reinforced steel frame, sealed gearbox drive system, and low-maintenance design for heavy contractor use.
Q9: What makes it different from smaller mixers?
A: Unlike portable mixers, the Workman II is a contractor-grade towable unit with higher output capacity and continuous job-site performance.
Maintenance Tips
-
Check engine oil daily: Ensure correct level in Honda GX160 engine for long life and stable performance.
-
Clean air filter regularly: Prevent dust intake to maintain fuel efficiency and engine reliability.
-
Lubricate moving parts weekly: Apply light aerosol lubricant to pivot points, dump mechanism, and moving joints.
-
Inspect drive belts frequently: Check tension early (especially during first hours of use) and re-tighten if loose.
-
Grease gearbox annually: Add grease to dump gear assembly to ensure smooth drum rotation and discharge.
-
Clean drum after each use: Prevent hardened concrete buildup to maintain mixing efficiency and reduce wear.
-
Check wheel bearings (6–12 months): Clean and repack grease for safe towing and smooth transport.
-
Tighten bolts monthly: Inspect frame, tow bar, and mounting hardware to ensure structural safety.
-
Keep gearbox sealed & protected: Avoid contamination—system is designed for low-maintenance operation.
-
Store dry & covered: Prevent rust on steel drum and frame for longer service life.
Damage 
Loss 
Theft 
