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HTM DC permanent magnet magnetic pump

Category: HTM
Updated: 2026-06-30

The Hennvi HTM series horizontal modular magnetic centrifugal pump adopts a permanent magnet shielded coupling structure, supporting direct connection of AC380V AC / DC550V DC dual power supplies, without the need for an external converter; Equipped with an IE5 ultra-high-efficiency energy-saving motor, standard analog flow adjustment of 4~20mA, the overall unit size is 50% smaller than conventional magnetic pumps, suitable for tight equipment spaces, maximum flow rate of 1400L/min, maximum head of 34m, capable of transporting high-viscosity, large-density corrosive chemicals, widely used in PCB, electroplating, fine chemicals, and new energy fluid circulation scenarios.



Product Details

1. Six core functional advantages

  1. IE5 ultra-efficient energy-saving motorThe motor energy efficiency grade exceeds IE5, and the overall efficiency of the whole machine is 65%; the low-frequency 30Hz operating efficiency is still greater than 52%; the pump body adopts a volute-type overflow structure, with low fluid inlet and outlet resistance, and full frequency conversion speed regulation to maintain high energy-efficiency operation, significantly reducing the long-term electricity cost of the production line.

  2. AC and DC dual power supply universal interfaceThe innovative integrated power module can be directly connected to AC380V industrial alternating current or DC550V direct current power supply without the need for additional power conversion equipment. It is suitable for diversified power supply solutions for new energy equipment and automated integrated production lines.

  3. Compact modular structureHorizontal integrated modular design, the volume of the whole machine is 50% smaller than that of ordinary magnetic pumps with the same parameters. It can be installed on equipment racks, small integrated filtration units, and small lab consoles, and has strong space adaptability.

  4. High viscosity/large specific gravity media adaptationThe high-torque permanent magnet drive structure can transport high-viscosity, high-specific-gravity corrosive liquids; the medium is allowed to have a higher specific gravity under low-speed frequency conversion conditions. The pump body and impeller have strong load-resistance capabilities and have a longer service life in 24-hour long-term continuous operation.

  5. 4~20mA standard flow controlIndustrial general-purpose 4~20mA analog signal stepless speed regulation, no need for complex programming and debugging; multiple types of industrial communication interfaces are reserved, which can be directly connected to PLC, touch screen, and automated central control system, and the circulation flow is accurately controllable.

  6. Ultra-high insulation safety protectionThe insulation standard of the whole machine is 1kV, the insulation resistance is greater than 1MΩ, and it is not prone to leakage in high-humidity and corrosive workshops. It is suitable for high-humidity corrosive production environments such as electroplating and etching, and the operation is stable and safe.

2. Disassembly instructions of the complete machine structure

Image 1.jpg

serial number

Part name

Material/Function Description

Maintenance Advantages

1

Permanent magnet motor

IE5 permanent magnet synchronous motor, magnetic contactless transmission, frequency conversion and energy saving

No shaft seal leakage, motor anti-corrosion coating is moisture-proof and rust-proof

2

Spacer assembly

Anti-corrosion shielding isolation sleeve, isolates the liquid from invading the inside of the motor and shields the magnetic field

The modules can be disassembled individually and can be replaced without disassembling the whole machine.

3

Main body sealing ring

All-in-one acid and alkali resistance O-ring, suitable for EPDM/VITON optional

Single-piece sealed back cover, only need to loosen the flange bolts for disassembly and assembly

4

Impeller assembly

Integrated injection molded anti-corrosion impeller, large torque diversion structure

Anti-crystallization, high specific gravity medium is not easy to get stuck, easy to replace

5

Pump cover assembly

Volute-type optimized pump chamber reduces fluid hydraulic loss

Improve flow output efficiency and reduce internal pressure loss

6

Inlet flange assembly

DN40/DN50/DN65/DN80 standard flange, matching sealing gasket

General industrial pipeline standard, strong adaptability for on-site pipeline modification

7

Outlet flange assembly

Matching flange with the same caliber, matching the inlet pipeline specifications

Unified fittings for inlet and outlet liquid pipelines, reducing the types of spare pipe fittings

3. Full range of product specifications

Model number

Import and export flange specifications

Maximum lift

(m)

Maximum flow

(L/min)

Minimum adjustable flow rate

(L/min)

Upper limit of medium specific gravity

Matching motor power

(kW)

Power supply specifications

Speed control mode

HTM-550

DN40/DN40

16

180

20

1.2

0.55

AC380V/DC550V

4~20mA analog

HTM-D550

DN40/DN40

16

180

20

1.5

0.75

AC380V/DC550V

4~20mA analog

HTM-750

DN40/DN40

17

320

20

1.2

0.75

AC380V/DC550V

4~20mA analog

HTM-D750

DN40/DN40

17

320

20

1.5

1.1

AC380V/DC550V

4~20mA analog

HTM-1100

DN40/DN40

17

320

20

1.2

1.1

AC380V/DC550V

4~20mA analog

HTM-1500

DN50/DN40

23

350

30

1.2

1.5

AC380V/DC550V

4~20mA analog

HTM-D2200

DN50/DN40

23

350

30

1.5

2.2

AC380V/DC550V

4~20mA analog

HTM-2200

DN50/DN40

25

470

30

1.2

2.2

AC380V/DC550V

4~20mA analog

HTM-3000

DN50/DN40

33

500

50

1.2

3

AC380V/DC550V

4~20mA analog

HTM-D3000

DN50/DN40

27

480

51

1.5

3

AC380V/DC550V

4~20mA analog

HTM-4000

DN65/DN50

32

820

50

1.2

4

AC380V/DC550V

4~20mA analog

HTM-D4000

DN65/DN50

28

800

50

1.5

4

AC380V/DC550V

4~20mA analog

HTM-5500

DN80/DN65

30

1100

50

1.2

5.5

AC380V/DC550V

4~20mA analog

HTM-D5500

DN80/DN65

26

1100

50

1.5

5.5

AC380V/DC550V

4~20mA analog

HTM-7500

DN80/DN65

32

1400

50

1.2

7.5

AC380V/DC550V

4~20mA analog

HTM-D7500

DN80/DN65

34

1200

50

1.5

7.5

AC380V/DC550V

4~20mA analog

HTM-D8000

DN80/DN65

29.5

1440

50

1.5

7.5

AC380V/DC550V

4~20mA analog

Important Notes on Specifications

When operating at maximum flow rate and rated maximum lift at full load, the specific gravity of the transported liquid must not exceed the limit value marked on the corresponding model; under low speed and frequency conversion conditions, the equipment can be adapted to media with higher specific gravity. For special high specific gravity conditions, technical personnel can be consulted to customize an exclusive solution.

4. Adaptable industries and application scenarios

Application industries

Typical production conditions

Recommended model series

Supporting advantages

PCB circuit board automated production line

Etching, micro-etching, development, neutralization tank strong acid and alkali liquid circulation

Full series HTM/HTM-D

is compact and embedded in the automation rack.4~20mA docking central control, no leakage and eliminate board defects

Hardware / Plastic plating production line

Chemical nickel, hard chromium, continuous plating tank supporting filter cycle

D suffix high specific gravity reinforced version

High torque is suitable for high specific dichromic acid, AC and DC compatible electroplating driving,24h continuous energy-saving operation

New energy lithium battery / Fine chemicals

Sealed transportation of electrolyte and high viscosity acid and alkali additives

D suffix DC universal model

Direct connection DC550V lithium battery power supply, zero magnetic leakage to prevent organic solvent volatilization, frequency conversion for precise proportioning

Integrated small filter unit

Activated carbon double tower filter,FH single-core filter with built-in circulation pump

DN40/DN50 small and medium power models

Volume Conventional Pump Only 50%, to solve the problem of insufficient installation space inside the equipment

Laboratory R&D prototype equipment

Small proofing plating tank, chemical dispensing cycle

HTM-550/750 small flow model

Adapts to the small space of the operating table, is universal for AC and DC, and high insulation ensures experimental safety

Environmentally friendly exhaust gas scrubber / Small wastewater station

Acid-base spray water circulation, heavy metal wastewater lifting and transportation

HTM-4000/7500 large flow model

Variable frequency adjustable spray flow, no leakage to avoid corrosive waste liquid contaminating the factory area

5. Key considerations for model selection

  1. Media specific gravity distinction: the conventional HTM standard model without D suffix is suitable for liquids with a specific gravity within 1.2; the enhanced torque model with D suffix is suitable for liquids with a specific gravity of up to 1.5. High specific gravity media such as chromic acid and chemical plating are preferred for D series models.

  2. Power supply scheme classification: The factory 380V AC automated production line uses the standard HTM model; new energy lithium battery equipment and DC power supply integrated equipment use the D suffix AC and DC universal model.

  3. Flow lift selection: If the vertical height of the pipeline is high and multi-layer filtration units are connected in series, the 32m/34m high lift and high-power model is preferred; for short-distance small tank circulation, the DN40 small-diameter low-power model can be selected.

  4. Frequency conversion control description: The whole series comes standard with 4~20mA standard industrial speed regulation signal, which can be directly connected to PLC and touch screen without the need for additional driver modules, and supports multi-protocol communication expansion.

  5. Space adaptation tip: The volume of the whole machine is only 50% of that of a traditional magnetic pump. It can be installed on built-in racks, integrated filter units, and small laboratory consoles. Before purchasing, confirm that the DN diameter of the on-site flange pipeline matches.

6. Supporting services and after-sales guarantee

  1. Free professional selection of working conditions: Based on the liquid specific gravity, working temperature, pipeline head, power supply type, equipment installation space, matching standard / D enhanced torque model, flange diameter and adapted power, an exclusive flow head selection plan is issued;

  2. Non-standard customization service: Full PVDF anti-corrosion current components, extended flange interface, special fluororubber sealing kit, special voltage customization, multi-industrial communication protocol module upgrade;

  3. Original factory warranty: The permanent magnet motor and pump body enjoy the original factory warranty. Wearable consumables such as impellers, spacers, and sealing rings are always in stock and are shipped quickly from warehouses across the country;

  4. On-machine sample test: Prototypes can be provided and sent to the production site for actual testing to verify the frequency conversion speed regulation accuracy, high specific gravity medium transportation stability, and narrow space installation and adaptation effects. After confirming that they completely match the production line working conditions, bulk purchases can be made.


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