Introduction
The HNA25 pigment slurry hose pump, also known as pigment peristaltic pump, is a positive displacement conveying equipment customized for coating, ink and color paste industries. It delivers materials by squeezing elastic hoses with rollers, designed for high-viscosity, particle-containing, easily precipitated and high-fineness pigment slurry.
Pigment and color paste peristaltic hose pumps are dedicated to slurry conveying. Low-shear operation preserves material quality with no leakage or color mixing. They handle high-viscosity particle slurry stably and require easy maintenance, widely applied in coatings, inks and fine chemicals.
The HNA25 coating slurry peristaltic hose pump is designed for coating and color paste transfer. Low-shear conveying avoids composition damage, bubbles and color separation. Sealed hose delivery prevents leakage and contamination. It features steady pressure and strong self-priming performance, suitable for production circulation, filtration and filling processes.
Coating layer slurry peristaltic hose pump applies to high-viscosity powder-containing slurry. Low-shear mode maintains material properties without bubbling and delamination. Fully sealed conveying ensures zero leakage and clean delivery. With stable pressure, it fits batching, circulation and filtration, boasting simple structure and convenient maintenance.
Performance Curve

Product Description
|
Model |
Rated Flow Rate (m³/h) |
Rated Pressure (MPa) |
Rated Speed (rpm) |
Rated Power (KW) |
Weight (KG) |
|
HNA10 |
0.06 |
1.6 |
42 |
0.37/0.55 |
85 |
|
HNA20 |
0.3 |
1.6 |
42 |
0.55/0.75 |
114 |
|
HNA25 |
0.5 |
1.6 |
34 |
1.1 |
145 |
|
HNA32 |
1 |
1.6 |
42 |
1.5 |
195 |
|
HNA40 |
1.5-2.5 |
1.6 |
34-50 |
1.5/2.2 |
316 |
|
HNA50 |
4-6 |
1.6 |
25-50 |
2.2/4 |
522 |
|
HNA65 |
7-11 |
1.6 |
25-42 |
4/5.5 |
655 |
|
HNA75 |
15-20 |
1.6 |
42-50 |
5.5/7.5 |
1400 |
|
HNA90 |
25 |
1.6 |
43 |
11 |
736 |
|
HNA100 |
50 |
1.6 |
35 |
22 |
1030 |
Advantages and Features
● Low-shear conveying preserves pigment quality without bubbling or color mixing.
● Fully sealed delivery achieves zero leakage and excellent material stability.
● Suitable for high-viscosity slurry with particles, featuring strong self-priming and anti-clogging performance.
● Simple structure for easy maintenance, with flexible flow and pressure adjustment.
Working Principle
A special rubber hose with a smooth inner wall and reliable strength is installed inside the pump body. A pair of rollers rotate and squeeze the hose, forcing the medium to flow in one direction without backflow. After the medium is conveyed, the hose restores its original shape under its own elasticity, creating a high vacuum inside to effectively draw the medium into the lumen. The medium is then discharged from the hose under the subsequent squeezing of the rollers. This cycle repeats continuously, and the medium is constantly sucked in and discharged.

01 The transmission device drives the rotor to rotate, and two rollers installed on the rotor and distributed at 180° squeeze the hose. When the first roller squeezes the hose, a high vacuum is created inside the hose, drawing the pumped material into the lumen. The hose then quickly returns to its original shape under its own elasticity.

02 The pumped material has now entered the hose. The second roller will squeeze the hose and push the material forward until it reaches the outlet.

03 At the hose pump outlet, one roller is about to leave the hose, while the other roller installed on the rotor (distributed at 180°) has already begun to squeeze the hose, thus preventing internal fluid leakage. This cycle repeats continuously, and the material is continuously drawn in and discharged.
Dimension(mm)


Core Component - Hose
|
NR |
NR hoses are suitable for conveying highly abrasive media, such as clay sludge, lime milk and non-organic products. Temperature range: -20°C to +80°C. |
|
EPDM |
EPDM hoses are applicable to corrosive chemical liquids such as acids and solvents. Made of natural rubber with an internal EPDM lining layer, they withstand temperatures from -20°C to +100°C. |
|
CSM |
CSM features excellent resistance to strongly oxidizing substances, as well as concentrated acids and alkalis. It is suitable for media such as hydrogen peroxide (up to 60% concentration), cationic flocculants (polymers), and high-concentration sulfuric acid. Temperature range: -20°C to +85°C. |
|
CR |
CR boasts good resistance to oil, heat, ozone, acids, alkalis and chemical reagents. Temperature range: -20°C to +80°C. |
|
FKM |
FKM delivers superior chemical resistance against strong acids, strong alkalis and a wide range of chemicals, with good oil resistance. It is ideal for oil-contacted and high-temperature working environments. Temperature range: -20°C to +120°C. |
|
NBR |
NBR is suitable for oil resistance (non-mineral oil), grease, alkalis and detergents. Typical media include sludge containing hydrocarbon fractions and polyaluminum chloride. Applicable temperature range: -20°C to +80°C. |
|
F-NBR |
F-NBR has a food-grade smooth inner surface, suitable for direct food contact and various food processing applications including dairy products. It is applicable to fruits and fruit concentrates, yogurt, dairy products, yeast, sugar and food additives, and resists various cleaning chemicals. Temperature range: -20°C to +80°C. |

The hose is made of high-quality composite rubber with 2 to 6 plies of textile reinforcement. The outer layer is manufactured to strict tolerances to ensure reliable hose performance.
The service life of Hono hose pump dedicated hoses is approximately 30% longer than that of other hoses available on the market.
Applications
● Coating & Ink Industry
Suitable for the production of various coatings and inks for slurry conveying, circulation, filtration and filling, avoiding bubbles and color difference, and ensuring stable finished color quality.
● Pigment & Color Paste Field
Applicable to the conveying of various pigments and high-concentration color master slurries. It adapts to high-viscosity and particle-containing working conditions, stabilizes pigment dispersion and ensures consistent batch color difference.
● Industrial Coating Working Conditions
Used for conveying and circulating anti-corrosion and functional coating slurries, preventing slurry stratification and precipitation, improving coating uniformity and adapting to fine coating processes.
● Fine Chemical Industry
Ideal for conveying, filtering and quantitative transfer of high-cleanliness, particle-containing fine slurries. It operates stably and adapts to automated continuous production.
FAQ
Q: Why does the slurry bubble, layer or discolor during pump operation, and how to solve it?
A: This issue is mainly caused by excessive rotating speed, over extrusion of rollers leading to high shear force, or air ingress in pipelines. Reduce the rotating speed, fine-tune the roller extrusion gap, and fasten pipeline joints to avoid air intake, so as to achieve low-shear stable conveying and prevent slurry bubbling, layering and color difference.
Q: How to troubleshoot problems during the operation of the pigment slurry hose pump?
A: Common faults including unstable pressure and flow, material leakage, abnormal noise and overload are mainly caused by hose wear, abnormal gap, pipeline blockage and air leakage, as well as loose accessories. The faults can be quickly fixed by replacing hoses and seals, adjusting gaps, dredging pipelines and fastening parts. Regular maintenance such as power-off inspection, routine cleaning and emptying before shutdown ensures stable pump operation.
Please feel free to contact our after-sales team if you have any problems.
Q: Where to purchase theHNA25 pigment slurry hose pump?
A: You may contact our sales team via the email juicy@sxhono.com.cn to obtain product specifications, quotations and selection recommendations. If you have special application requirements, we can also provide you with customized fluid transfer solutions.
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