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SUNMORE OEM ODM Rotomolded Spherical Water Tower Mold for HDPE Plastic Water Tank

Brand Name:	SunMore
Model Number:	SM-STM
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

Brand:

SUNMORE

Material:

High-Quality Carbon Steel With Reinforced Frame

Process:

CNC Machining + Anti-corrosion & Anti-rust Treatment

Type:

OEM ODM Rotomolded Spherical Water Tower Mold For HDPE Plastic Water Tank

Custom Service:

OEM & ODM Available

Usage:

For HDPE Spherical Water Tanks, Drinking Water Storage, Industrial & Agricultural Water Tanks

Feature:

High Precision, Uniform Wall Thickness, Reinforced Structure, Corrosion & Pressure Resistant

Application:

Domestic Water Supply, Industrial Plants, Farms, Construction Sites & Remote Areas

Packaging Details:

Wooden box

Supply Ability:

Can produce 8-10 molds per month

Highlight:

Rotomolded spherical water tower mold

HDPE plastic water tank mold

OEM ODM rotomolded tank

Product Description

SUNMORE OEM ODM Rotomolded Spherical Water Tower Mold

This large-scale high-precision rotational mould is independently designed and manufactured by SUNMORE factory for one-piece rotomolding of HDPE spherical water towers and storage tanks. Engineered for domestic water supply, industrial water storage, agricultural irrigation, and environmental projects.

Key Manufacturing Advantages

Uniform Wall Thickness Control

Conventional moulds often suffer from uneven heating in large spherical structures, resulting in inconsistent wall thickness and poor pressure resistance. Our reinforced and evenly heated design ensures uniform heat transfer and consistent wall thickness, significantly improving structural strength and pressure-bearing capacity.

Precision Spherical Contours

Ordinary moulds struggle to reproduce smooth spherical surfaces and functional openings, leading to burrs, seams, or difficult demoulding. Our split-type spherical mould with precision positioning and quick-release clamps ensures smooth, seamless tank surfaces and easy, damage-free demoulding.

Structural Rigidity & Stability

Large spherical moulds are prone to deformation under high-temperature and rotational forces. Our mould is reinforced with a sturdy frame and multi-point support, ensuring stable structure and consistent product quality even in long-term high-volume production.

Enhanced Corrosion Resistance

Without proper anti-corrosion treatment, moulds used for water tank production are easily corroded by steam and chemicals. Our mould undergoes professional anti-corrosion and anti-rust treatment, maintaining stable precision and smooth surfaces for tens of thousands of production cycles.

Technical Specifications

Material	High-Quality Carbon Steel with Reinforced Frame
Processing Technology	CNC Machining + Multi-step Polishing + Anti-corrosion & Anti-rust Treatment
Customization	Supports OEM/ODM customization of tank capacity, diameter, wall thickness, inlet/outlet positions, manhole design, and other functional features according to customer drawings or samples
Structure	Split spherical mould with reinforced frame, quick-lock clamps, and standard rotomoulding equipment interface

Applications

Rotomolding production of HDPE spherical water towers
Drinking water storage tanks
Industrial water tanks
Agricultural irrigation tanks
Environmental water treatment tanks

Widely applicable to domestic water supply systems, industrial plants, farms, rural areas, construction sites, and remote areas without centralized water supply.

Selection Guide

Choose this mould when you need to mass-produce large-capacity, seamless HDPE spherical water tanks with consistent wall thickness, high pressure resistance, and corrosion resistance. Ideal for customers requiring hygienic, durable water storage solutions for domestic, industrial, or agricultural use.

For different capacities or tank shapes (e.g., vertical cylindrical tanks), we offer a full range of standard and custom mould solutions.

Frequently Asked Questions

Can you customize the capacity and size of the spherical water tank?

Yes, we provide full OEM/ODM customization services, supporting various capacities, diameters, wall thicknesses, and functional configurations to meet your specific storage needs.

What are the advantages of spherical water tanks compared to other shapes?

Spherical tanks have uniform stress distribution, high pressure resistance, and better space efficiency. The seamless rotomolded construction also eliminates weak points, making them more durable and leak-proof.

Can the mould produce tanks with custom openings or accessories?

Yes, we can integrate custom inlet/outlet ports, manholes, mounting brackets, and other features into the mould according to your requirements.

How long is the service life of this mould?

With proper maintenance, including regular cleaning and anti-rust treatment, the mould can maintain high precision for tens of thousands of rotomoulding cycles.

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

Zoe Clark

Benin May 28.2026

trustpilot.com

Helpful (13)

High temperature and strong ultraviolet weather locally can’t affect the tank performance. These 15 ton roto tanks serve urban residential area water reserve for infrastructure project, stable continuous water supply all year round.

Tom Wilson

United Kingdom Apr 15.2026

trustpilot.com

Helpful (52)

This custom rotomolding steel mold works perfectly. The inner floral pattern is clear and delicate, and the HDPE water tanks produced have even wall thickness without any flaws. Highly recommend it!

Paul Silva

Brazil Apr 2.2026

trustpilot.com

Helpful (43)

We ordered a large batch of 5T horizontal roto tanks for urban construction project water supply. Thickened LLDPE material ensures outstanding pressure resistance, no bulging after long-time full-load water storage. Horizontal design saves construction space and speeds up installation work.

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products details

SUNMORE OEM ODM Rotomolded Spherical Water Tower Mold for HDPE Plastic Water Tank

Rotomolded spherical water tower mold

HDPE plastic water tank mold

OEM ODM rotomolded tank

Overall Rating

Rating Snapshot

All Reviews

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