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SUNMORE Rotomolded Special-Shaped HDPE Water Tank, Reinforced Rib Custom Irregular Plastic Water Storage Tank For Sewage Treatment & Farm Water Supply

Brand Name:	SunMore
Model Number:	SM-RT-TANK-SPE
MOQ:	1 Piece
Price:	Advisory Service
Delivery Time:	45 working days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China Jiangsu

Certification:

CE/ISO9001

Features:

Seamless Leakproof, High Pressure Anti-Deformation, Acid & Alkali Resistant, Anti-UV Anti-Aging, Special Shape Fit Narrow Installation Space, All Ports One-Step Forming, Easy Clean, Reusable Storage Vessel

Brand:

SUNMORE

Tank Material:

Thickened Anti-Corrosion Anti-UV Modified Rotomolded HDPE Plastic

Product Name:

SUNMORE Rotomolded Special-Shaped HDPE Water Tank, Reinforced Rib Custom Irregular Plastic Water Storage Tank For Sewage Treatment & Farm Water Supply

Craft:

Seamless One-Piece Rotational Molding With Integrated Reinforcing Ribs

Customizable Shapes:

Cone Bottom Special Tank, Asymmetrical Transition Irregular Tank, Narrow Space Custom Profile Tank

Applicable Venues:

Rural Water Supply, Farm Irrigation, Wastewater Treatment, Underground Buried Storage, Industrial Special Liquid Storage

Custom Service:

OEM & ODM, Custom Tank Volume, Irregular Outer Shape, Reinforcing Rib Layout, Reserved Port Size & Position, Shell Color

Supply Ability:

Highlight:

Rotomolded HDPE water tank

Reinforced rib plastic storage tank

Irregular sewage treatment water tank

Product Description

Product Overview

The SUNMORE Rotomolded Special-Shaped HDPE Water Tank is a custom irregular rotomolded plastic water tank manufactured using seamless one-piece thickened HDPE rotational molding. The tank body features integrated convex reinforcing ribs for superior pressure resistance. Custom configurations include special cone bottoms, square transitions, and multi-port reserved special shapes to accommodate specific installation space requirements. With excellent anti-corrosion, anti-aging, and leakproof performance, this tank is widely used in rural water supply, farm irrigation, sewage purification, environmental dosing, and underground confined installation projects.

Key Features & Benefits

One-Piece Rotomolded Thick HDPE Body, Zero Leakage Risk: The entire special-shaped tank is formed in a single rotational molding process without splicing or welding gaps. Thickened modified HDPE walls prevent liquid seepage, making it suitable for long-term storage of clean water, sewage, and chemical liquids.
Integrated Circumferential Reinforcing Rib Design, Outstanding Anti-Pressure Performance: Evenly distributed convex reinforcing ribs are molded together with the tank body, significantly improving radial compression resistance. The tank can withstand underground backfill soil pressure and internal liquid gravity without bulging or deformation during full-load long-term operation.
Anti-UV & Acid-Alkali Corrosion Resistant Raw Material Formula: HDPE raw material is blended with UV stabilizers and anti-corrosion additives, providing resistance to long-term outdoor sunlight aging and erosion from domestic sewage, agricultural fertilizer liquids, and weak acid-base reagents. Ideal for outdoor and underground buried installations with extended service life.
Comprehensive Customization For Engineering Projects: Customize tank capacity, redesign irregular outer contours, optimize reinforcing rib distribution, add multi-spec reserved pipe ports, match custom shell colors, and carve brand logos on the tank surface to meet special installation demands for sewage, farmland, and underground projects.

Product Specifications

Specification	Details
Tank Material	Thickened anti-corrosion anti-UV modified rotomolded HDPE plastic
Manufacturing Craft	Seamless one-piece rotational molding with integrated reinforcing ribs
Optional Custom Shapes	Cone bottom special tank, asymmetrical transition irregular tank, narrow space customized profile tank
Standard Reserved Ports	Water inlet, water outlet, liquid level monitoring port, sewage discharge port, optional agitator mounting port
Custom Service	OEM & ODM, customize tank volume, irregular outer shape, reinforcing rib layout, reserved port size & position, shell color
Core Performance	Seamless leakproof, high pressure & deformation resistance, acid & alkali corrosion resistant, anti-UV anti-aging, special shape for narrow installation space, one-step forming of all pipe ports, easy to clean, reusable storage vessel

Application Scenarios

Rural & Agricultural Water Conservancy

Village domestic water supply special-shaped storage tank, farmland irrigation rainwater collection irregular water tank, livestock breeding sewage temporary storage cone bottom tank

Environmental Sewage Treatment Projects

Small sewage station sedimentation special HDPE tank, rural decentralized wastewater purification irregular storage container, water treatment plant dosing special-shaped tank

Underground Buried Confined Installation

Basement narrow space buried water storage tank, underground sewage collection irregular plastic vessel, compact small-sized water conservancy equipment matching tank

Custom Industrial Liquid Storage

Factory workshop narrow space special-shaped liquid storage tank, light industry weak chemical liquid irregular HDPE storage barrel, landscaping rainwater recycling special tank

Frequently Asked Questions

Can this special-shaped tank bear backfill pressure when buried underground?

Integrated thick reinforcing ribs are distributed all over the tank body, which evenly disperses soil backfill pressure, effectively preventing bulging and cracking under buried working conditions.

Can the irregular outline and all pipe ports be formed in one step without post-processing?

We adjust the mold cavity according to customer drawings to realize special outline and all inlet/outlet ports integrated molding, no need for secondary cutting and drilling after demolding.

What customization can be provided for environmental and agricultural engineering bulk orders?

We customize tank internal volume, redesign irregular outer contour, adjust the layout and quantity of reinforcing ribs, add various reserved pipe ports, change tank shell color and print enterprise brand logos on the surface.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Diana Flores

Colombia May 10.2026

trustpilot.com

Helpful (35)

We bought mixed sizes of 500L and 1000L rectangular tanks to upgrade factory circulating water system. Integrated roto molding has no weld seam, good anti-corrosion property ensures stable continuous operation of industrial equipment without water leakage.

Luis Mendez

The former Yugoslav Republic of Macedonia May 7.2026

trustpilot.com

Helpful (11)

We adopt 200L rectangular LLDPE tanks as container for our factory chemical dosing equipment. Excellent chemical resistance against flocculant and disinfectant liquid. The rectangular shape fits compact installation inside dosing cabinet, no liquid leakage after long-time continuous dosing operation.

Lucas Costa

Svalbard and Jan Mayen Islands Apr 28.2026

trustpilot.com

Helpful (48)

We purchased multiple 2000L rectangular tanks to build centralized liquid supply station for our production plant. Integral rotational molding brings seamless structure, zero leakage during long-term uninterrupted centralized liquid conveying. The square layout allows dense side-by-side installation to save workshop floor space.

Tags:

Rotomolding Mold

Rotational Molding Mold

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Rotomolded Tanks

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Chemical Dosing Tanks

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Rotomolding Mold

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Rotomolded Tanks

Rectangular Plastic Tanks

Chemical Dosing Tanks

Rotomolded Fishing Boat

Plastic Round Tubs

Forklift Storage Containers

Rotomolding Machine

Amusement Slide Rotomolding Mold

products details

SUNMORE Rotomolded Special-Shaped HDPE Water Tank, Reinforced Rib Custom Irregular Plastic Water Storage Tank For Sewage Treatment & Farm Water Supply

Rotomolded HDPE water tank

Reinforced rib plastic storage tank

Irregular sewage treatment water tank

Overall Rating

Rating Snapshot

All Reviews

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