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Co Mill - Advanced co mill for dry and wet material grinding. Non-flame proof, vacuum-rated, dual impeller options. VFD control 100-2880 RPM, inline blender integration.

The Co Mill delivers versatile grinding with interchangeable conical or knife-edge impeller options, engineered for precision dry and wet material processing with seamless blender integration and variable speed control from 100-2880 RPM.

Basic construction in Non-Flame Proof design, suitable for standard pharmaceutical manufacturing environments.
Basic design in Vacuum Rated Model, enabling safe processing of oxygen-sensitive and heat-sensitive pharmaceutical materials.
Can be used for milling of both dry and wet materials, providing versatility for various pharmaceutical formulations and processes.
Mill can be loaded manually or through Pneumatic Transfer System, offering flexibility in your production workflow.
Same mill can be connected with Transfer system for Blender Loading with inline milling, enabling seamless integration and continuous processing.
In the same mill, we can use the Conical Impeller OR Knife Edge Impeller, providing flexibility to optimize for different material types and desired particle sizes.
Mill impeller is directly connected with motor shaft, so no belt drive and no black particle generation, eliminating contamination from wear debris.
Mill with variable frequency drive for step-less drive with variable speed control from 100 to 2880 RPM, enabling optimization for different grinding requirements.
Very low noise level ensures a quiet and pleasant working environment for pharmaceutical manufacturing operators.
No need of spanner for opening of mill for cleaning, simplifying maintenance and reducing equipment downtime.

Key Technical Advantages

Dual Impeller Options (Conical & Knife Edge)

Business Benefit: Process Flexibility & Optimization

Interchangeable impeller design enables selection of conical impeller for gentle grinding or knife-edge impeller for aggressive size reduction based on material type.

Performance: Supports 30+ formulation types; optimizes particle size for each material

Vacuum Rated Model Design

Business Benefit: Sensitive Material Protection

Vacuum-rated design enables safe processing of oxygen-sensitive and heat-sensitive pharmaceutical materials without degradation.

Performance: Preserves product potency; prevents oxidation and thermal damage

Direct Motor Shaft Connection (No Belt Drive)

Business Benefit: Purity & Elimination of Contamination

Direct impeller connection to motor eliminates belt drive system, preventing black particle generation and product contamination.

Performance: Zero belt wear particles; eliminates contamination risk completely

VFD Control with 100-2880 RPM Range

Business Benefit: Precision Control & Particle Size Optimization

Variable frequency drive enables step-less speed control from 100-2880 RPM, optimizing milling intensity for different materials and target particle sizes.

Performance: Achieves ±5% particle size uniformity; supports 50+ formulations

Flexible Loading Options

Business Benefit: Automation & Labor Efficiency

Manual loading for small batches or pneumatic transfer system for automated continuous processing and inline blender integration.

Performance: Reduces loading time by 25-30%; increases throughput by 35%

Inline Blender Integration Capability

Business Benefit: Continuous Processing & Efficiency

Direct connection to Transfer system and Blender enables seamless inline milling without intermediate steps.

Performance: Eliminates 2-3 material transfers; saves 15-20 min per batch

Request Co Mill Quote

MODEL	Lab Co Mill	Production Co Mill	Standard Co Mill	Heavy-Duty Co Mill
Output Capacity (kg/hr)	Up to 50	Up to 200	Up to 300	Up to 500
Impeller Options	Conical/Knife	Conical/Knife	Conical/Knife	Conical/Knife
Motor HP	1	3	5	7.5
Speed Range (RPM)	100-2880	100-2880	100-2880	100-2880
Speed Control	VFD	VFD	VFD	VFD
Maximum Viscosity (cP)	5,000	15,000	25,000	50,000
Particle Size Range (microns)	10-500	5-500	2-500	1-500
Noise Level (dB)	<65	<68	<70	<72
Hopper Capacity (Ltrs)	20	50	75	100
Maintenance-Free Opening	Yes	Yes	Yes	Yes

Output Capacity (kg/hr)	Up to 50
Impeller Options	Conical/Knife
Motor HP	1
Speed Range (RPM)	100-2880
Speed Control	VFD
Maximum Viscosity (cP)	5,000
Particle Size Range (microns)	10-500
Noise Level (dB)	<65
Hopper Capacity (Ltrs)	20
Maintenance-Free Opening	Yes

Output Capacity (kg/hr)	Up to 200
Impeller Options	Conical/Knife
Motor HP	3
Speed Range (RPM)	100-2880
Speed Control	VFD
Maximum Viscosity (cP)	15,000
Particle Size Range (microns)	5-500
Noise Level (dB)	<68
Hopper Capacity (Ltrs)	50
Maintenance-Free Opening	Yes

Output Capacity (kg/hr)	Up to 300
Impeller Options	Conical/Knife
Motor HP	5
Speed Range (RPM)	100-2880
Speed Control	VFD
Maximum Viscosity (cP)	25,000
Particle Size Range (microns)	2-500
Noise Level (dB)	<70
Hopper Capacity (Ltrs)	75
Maintenance-Free Opening	Yes

Output Capacity (kg/hr)	Up to 500
Impeller Options	Conical/Knife
Motor HP	7.5
Speed Range (RPM)	100-2880
Speed Control	VFD
Maximum Viscosity (cP)	50,000
Particle Size Range (microns)	1-500
Noise Level (dB)	<72
Hopper Capacity (Ltrs)	100
Maintenance-Free Opening	Yes

Frequently Asked Questions

Conical or knife-edge impeller — which should we use?

The conical impeller works the material against a conical screen at lower shear, giving less heat build-up and a tighter distribution — use it for heat- or shear-sensitive actives and for de-lumping. The knife-edge impeller cuts harder and faster for tougher material. Both fit the same mill and swap over by hand.

Why is there no belt drive?

The impeller is mounted directly on the motor shaft. There is no belt to shed black wear particles into the product, and no belt tensioning or replacement in the maintenance schedule.

What does the 100-2880 rpm VFD range give you?

One mill covers a wide job range. Low speed suits gentle de-lumping and friable granules; high speed suits fine size reduction of harder material. Screen aperture and impeller choice set the rest of the cut.

What output and particle size can it achieve?

Four models from Lab Co Mill (up to 50 kg/hr) to Heavy-Duty Co Mill (up to 500 kg/hr), with Production and Standard sizes between. Achievable particle size runs from about 2 to 500 microns depending on model, screen and impeller, and the mill handles wet material up to roughly 25,000-50,000 cP on the larger frames.

Can it mill in-line during blender loading?

Yes. The Co Mill can be fed manually or from a pneumatic transfer system, and it can sit in-line on a transfer system charging a blender so milling and blender loading happen in one step, removing intermediate transfers.

Is a vacuum-rated version available, and how is it cleaned?

A vacuum-rated model is available for oxygen- or heat-sensitive materials, allowing an inert, closed path. The mill opens for cleaning without spanners, so screen and impeller changeover between products is quick.