China Slurry Pumps, Warman Pumps and Warman Slurry Pump Parts Manufacutrer in China - Tobee Pump 180 3203 4573

TH20x18 Mill Discharge Pump


    Size: 20" x 18"
    Capacity: 2520-5400m3/h
    Head: 13-57m
    Speed: 200-400rpm
    NPSHr: 5-10m
    Eff.: 85%
    Power: Max.1200kw
    Handling solids: 140mm
    Seal arrangement: Packing seal, Expeller seal, Mechanical seal
    Materials: High chrome alloy, Rubber, Polyurethane, Ceramic etc

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  • Product Description

Tobee® TH20x18 Mill Discharge Pump is world’s standard for heavy duties application. It is designed to easily manage large size particles in dense abrasive slurries and offers the right combination of ruggedness, durability, hydraulics and materials. From the most difficult mill discharge to water flushed crusher, From cyclone feed to regrind, flotation and tailings, The 20x18 slurry pump is the best choice.

Design Features:

• Bearing assembly - a large diameter shaft with short overhang minimizes deflection and contributes to long bearing life. Only four through bolts are required to hold the cartridge type housing in the frame.
• Liners - easily replaceable liners are bolted, not glued, to the casing for positive attachment and east of maintenance. Hard metal liners are completely interchangeable with pressure moulded elastomer.
• Elastomer seal rings back all liner joints.
• Casing - Casing halves of cast or ductile iron with external reinforcing ribs provide high operating pressure capabilities and an extra measure of safety.
• Impeller - front and rear shrouds have pump out vanes that reduce recirculation and seal contamination. Hard metal and moulded elastomer impellers are completely interchangeable.
• Cast in impeller threads require no inserts or nuts. High efficiency and high head designs are also available.
• Throatbush - wear is reduced and maintenance simplified by the use of tapered mating faces to allow positive accurate alignment during assembly and simple removal.
• One-piece frame - a very robust one-piece frame cradles the cartridge type bearing and shaft assembly.
• An external impeller adjustment mechanism is provided below the bearing housing for easy adjustment of impeller clearance

Tobee® TH20x18 Mill Discharge Pump Performance Parameters:




MaterialsClear water performance


Vane No.


Capacity Q


Head H


Speed n


Eff. η





Tobee® TH20x18 Mill Discharge Pump Structural Drawing:

Tobee TH20x18 Mill Discharge Pump Structural Drawing

Tobee® TH20x18 Mill Discharge Pump Structural Design:

Tobee TH20x18 Mill Discharge Pump Structural Design

No.Part codePart nameMaterialsQ’tyNo.Part codePart nameMaterialsQ’ty
1*013Cover plateQT500-7115.1*111PackingAsbestos rope2
2/Bolt componentsSteel815.1*111PackingAsbestos rope4
3*085 CotterA3216.1*063Lantern ring1Cr18Ni9Ti1
4*083Throat bushCr27116.2*118 Lantern restrictor1Cr18Ni9Ti1
5*124Volute cover sealNatural rubber217.1*044Gland assemblyHT2001
6*110VoluteCr27117.2*044Gland assemblyHT2001
7*147ImpellerC27118.1*210O-ringNitrile Rubber3
8*041FPL insertCr27118.2*210O-ringNitrile Rubber2
9/Bolt componentsSteel419.1*075Shaft sleeve3Cr131
10.1*028ExpellerCr27119.2*076Shaft sleeve3Cr131
10.2////20*032Frame plateQT500-71
11.1*122Stuffing box sealNatural rubber121/Bolt componentsSteel3
11.2*122Stuffing box sealNatural rubber122*003FrameQT500-71
12.1*029Expeller ringCr27123*005Bearing assembly/1
12.2*079Stuffing box

24/Hold-down bolt components/4
13.1/Bolt componentsSteel425/Static ring assemblySS3161
13.2/Bolt componentsSteel426/Rotating ring assemblySS3161
14.1*067Neck ring1Cr18Ni9Ti127*0753Cr1311

Tobee® TH20x18 Mill Discharge Pump Shaft Seal Arrangement:

• Packing Seal - As one of the most commonly used seals for rotating shafts, the packing seal can come with low-flush or full flush arrangement which uses flushing water to prevent media from escaping the pump housing. This kind of seal is suitable for use under all pumping conditions. In situations where corrosive solids or high temperature might be encountered, Teflon or aramid fiber is used as the packing material for the gland. For high abrasion conditions, a ceramic shaft sleeve is available.

• Expeller Seal - The combination of impeller and expeller creates the pressure needed to seal against leakage. Together with the gland seal or lip seal which is used as the shut-down seal, this type of seal can handle sealing requirements for applications where full-flush gland seal is impractical due to lack of water on the site, or sealing water is allowed to enter inside the pumping chamber to dilute the slurry.

• Mechanical Seal - Advanced sealing technique without sealing leakage, The advantages are integrating construction, convenient installation & replacement, The design of mechanical seal and seal box is suitable for liquid flow condition,So it has high abrasion and vibration resistance, Mechanical seal can be used in various severe conditions.

Tobee® TH20x18 Mill Discharge Pump Matched Frame Type:

Max.Power (kw)7.51530601203002606005601200
Frame Weight (kg)17244577.515422855510065461156
Amount of Shaft Sealing Water (l/s)

Tobee® TH20x18 Mill Discharge Pump Driven Type:

Tobee TH20x18 Mill Discharge Pump Driven Type

CR Type: This type of belt drive makes it easier to adjust pumping speed. The installation allows both the motor and slurry pump to be fixed to the ground. The motor is installed to the side of the pump. This installation method is suitable for large-power motors.
CV Type: The pump is driven by a belt connected to the crankshaft of the engine. This way of connection allows for saving space, easy installation, and fast adjustment of pumping speed. The motor is fixed to the motor support frame which is located on the bearing support above the slurry pump.
ZV Type: Another type of belt drive that allows easy adjustment of pumping speed. The motor is directly fixed to the bearing support. This way of installation is suitable for motors with larger horsepower than is possible with CV type of installation. Due to the installation of motor onto the bearing support, this method helps save installation space.
DC Type: The output shaft of a motor is directly connected to the input shaft of a pump via a pump coupler. This type of connection is suitable for applications where the speed of the slurry pump is the same as that of the motor.

Tobee® TH20x18 Mill Discharge Pump On-site Applications:

Tobee TH20x18 Mill Discharge Pump On-site Applications


Mining & Mineral Processing
The slow running speeds of the Tobee TH Heavy Duty Slurry Pump, together with the comprehensive choice of abrasion resistant alloys and elastomers, provide unrivalled performance and service life for all abrasive mining and minerals processing applications.

Chemical Process
The interchangeability of alloy and elastomer components in the same pump casing, together with a wide range of mechanical seals, make the Tobee TH Heavy Duty Slurry Pump the most flexible choice for the chemical plant environment.

Sand & Gravel
Designed for easy and simple strip down and re-assembly, the Tobee TH Heavy Duty Slurry Pump minimises downtime, making it the ideal choice where installed stand by pumps are not available.

Sugar Processing
The premium reliability and service life of the Tobee TH Heavy Duty Slurry Pump is specified by many sugar plant engineers worldwide where uninterrupted pump operation during the sugar campaign is a critical requirement.

Flue Gas Desulphurisation
The new generation of specially formulated abrasion and corrosion resistant alloys, together with the very latest elastomer technology, positions Tobee Pumps firmly as a major supplier of pumps to the FGD industry.

Oil & Gas Exploration
Over a number of years we have developed the proven design of the Tobee TH Heavy Duty Slurry Pump ranges to suit the specific demands of offshore applications. We can now offer the most reliable top side solution to erosive wear.

Industrial Applications
Wherever abrasive solids are causing premature failure of pumps, the Tobee TH Heavy Duty Slurry Pump range has the right combination of performance, wear life and reliability to bring the customer the lowest cost of ownership.

Tobee® TH20x18 Mill Discharge Pump Dimensional Dimensions:

Tobee TH20x18 Mill Discharge Pump Dimensional Dimensions

* Tobee® is a registered trademark and does not represent or is not in any way affiliated with Warman® of Weir Minerals Group. All names,numbers, symbols and descriptions are used for reference purpose only and do not imply that any pumps or parts listed is the product of Warman Pumps.
* Tobee® TH20x18TU slurry pumps and parts are only interchangeable with Warman® 20x18TU-AH slurry pumps and parts.

* This document is the property of Tobee® Pump and can be neither reproduced nor disclosed to a third party without a written authorization.

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