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Three Roll Horizontal Mills
Three Roll Horizontal Mill
Standard Features
- Removable bronze side shields
- Pneumatically operated take-off knife
- Cast, dual-metal rolls
- Positive roll temperature control
- Full complement of safety equipment
- Wash-up stick
- Electrical system to meet plant requirements
- Variable speed motor & controls are recommended depending on speed and application
- Enclosed silent chain drive or belt drive
- Cast iron frame
- Centralized lubrication
- Hand or knee-operated safety switch
Optional Features
- Dynamic braking
- Mill platform
- Optional fast apron roll speed of 400 rpm
- Single-speed motor
- Explosion-proof electrical equipment
Electro-Hydraulic Controls
Power for roll adjustments is provided by a hydraulic power unit installed in the machine base. Hydraulic cylinders at each end of the adjustable rolls are activated by a pressure pushbutton located in the control panel. Manually positioned valves control the Release-Hold-Close actions of the feed and take-off rolls. Hydraulic pressure gauges indicate the pressure settings of the rolls.
Sight-O-Matic Controls
Sight-O-Matic mills are provided with pressure gauges as a reference for the mill operator in resetting the roll pressures. This system uses small oil-filled cartridges between the handwheel spindles of the feed and take-off rolls and the roller bearing housing. Pressures applied to the housings affect the cartridges and are indicated on the gauges.
Manual Controls
Most three-roll mills and some specialized mills are equipped with manual controls for feed and apron roll pressure, permitting operators to adjust and re-adjust rolls at will before or during runs. Any Lehmann mill may be ordered with manual controls, and company technicians will be happy to assess the feasibility of these economical controls depending on your particular application.
Standard Classification & General Specifications
| Roll Size | Model | Controls | Std HP | Apron Roll Speed | Floor Space | Net Lbs. | Shipping Wt. |
|---|---|---|---|---|---|---|---|
| 16 x 40 | 583-AH | Electro-Hydraulic | 60/30 | 350 | 67" x 6'6" | 12,000 | 12,500 |
| 13 x 32 | 613-BH | Electro-Hydraulic | 40/20 | 350 | 5'10" x 5'10" | 9,000 | 9,500 |
| 16 x 40 | 661-V | Sight-O-Matic | 60/30 | 350 | 6'7" x 6'6" | 12,000 | 12,500 |
| 13 x 32 | 662-V | Sight-O-Matic | 40/20 | 350 | 5'10" x 5'10" | 9,000 | 9,400 |
| 9 x 24 | 663-V | Sight-O-Matic | 20/10 | 350 | 4'8" x 4'0" | 5,000 | 5,300 |
| 16 x 40 | 1-A | Manual | 60/30 | 350 | 6'7" x 6'6" | 12,000 | 12,500 |
| 13 x 32 | 2-A | Manual | 40/20 | 350 | 5'10" x 5'10" | 9,000 | 9,400 |
| 9 x 24 | 3-A | Manual | 20/10 | 350 | 4'8" x 4'0" | 5,000 | 5,300 |
Three Roll Vertical Mills
Three Roll Vertical Mill
Standard Features
- Removable bronze side shields
- Pneumatically operated take-off knife
- Cast, dual-metal rolls
- Positive roll temperature control
- Full complement of safety equipment
- Wash-up stick
- Electrical system to meet plant requirements
- Two-speed motor
- Enclosed v-belt drive
- Cast iron frame
- Centralized lubrication
- Hand or knee-operated safety switch
Optional Features
- Dynamic braking
- Mill platform
- Optional fast apron roll speed of 400 rpm
- Single-speed motor
- Explosion-proof electrical equipment
- Variable frequency drive
Sight-O-Matic Controls
Sight-O-Matic mills are provided with pressure gauges as a reference for the mill operator in resetting the roll pressures. This system uses small oil-filled cartridges between the handwheel spindles of the feed and take-off rolls and the roller bearing housing. Pressures applied to the housings affect the cartridges and are indicated on the gauges.
Manual Controls
Most three-roll mills and some specialized mills are equipped with manual controls for feed and apron roll pressure, permitting operators to adjust and re-adjust rolls at will before or during runs. Any Lehmann mill may be ordered with manual controls, and company engineers will be happy to assess the feasibility of these economical controls depending on your particular application.
Standard Classification & General Specifications
| Roll Size | Model No. | Standard H.P. | Standard Apron Roll Speed (rpm) | Floor Space | Net Weight (lbs.) | Shipping Weight (lbs) |
|---|---|---|---|---|---|---|
| 16 x 40 | 631-V | 60/30 | 350 | 5'0" x 7'11" | 14,000 | 14,500 |
| 13 x 32 | 632-V | 40/20 | 350 | 4'6" x 7'3" | 11,000 | 11,400 |
Model 7312KVH Three Roll Mill
Model 7312KVH Three Roll Mills
The 7312KVH mill is designed to make operation easier, increase production and product quality, and to provide a safe, efficient production mill with the features most often requested by customers.
The 7312KVH will increase production through better temperature and roll pressure control, faster roll RPM, a slightly longer working face of 42" and increased feed hopper capacity as compared to standard 16"x40" mills. A 23% increase in production will result from increased roll speed and roll size alone, and in many cases the improved control, mill speed and size will more than double production rates.
Three Roll Inclined Mill
Three Roll Inclined Mill
Standard Features
- 16" X 40" centrifugally cast dual metal alloy rolls
- 75/56 HP two-speed steel construction
- Heavy welded steel construction
- Roll adjustment options (Hydraulic or Anti-backlash electric)
- Automatic roll temperature control
- Stainless steel discharge apron & feed hopper
- Adjustable side shields
- Pneumatic scraper blade assembly