Changzhou SunMore Rotomolding Technology Co., ltd
| name | Custom Rotomolding Mold |
| Heating Method | Gas Oven / Electric Oven Compatible (Uniform Heating for Stable Wall Thickness) |
| Delivery Time | 45 days |
| Payment Terms | T/T |
| Opening Design | Opening Diameter 370–660mm (Supports Custom Inlet/Outlet and Flange Design) |
| Mold Material | Aluminum Alloy / Steel |
| Mold Size Capability | Max Diameter up to 3150mm, Max Height up to 4150mm |
| Cooling Method | Air Cooling and Water Spray Cooling Supported |
| Production Performance | table Cycle Time with Uniform Wall Thickness Distribution |
| Mold Type | Custom Vertical Tank Mold |
| Custom Capability | Full Custom Design Based on Client Drawings or Tank Requirements |
| Capacity Range | 0.2T–30T |
| Supply Ability | 10 |
| Brand Name | SunMore |
| Certification | CE/ISO9001 |
| Model Number | Hollow plastic products |
| Place of Origin | China Jiangsu |
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Product Specification
| name | Custom Rotomolding Mold | Heating Method | Gas Oven / Electric Oven Compatible (Uniform Heating for Stable Wall Thickness) |
| Delivery Time | 45 days | Payment Terms | T/T |
| Opening Design | Opening Diameter 370–660mm (Supports Custom Inlet/Outlet and Flange Design) | Mold Material | Aluminum Alloy / Steel |
| Mold Size Capability | Max Diameter up to 3150mm, Max Height up to 4150mm | Cooling Method | Air Cooling and Water Spray Cooling Supported |
| Production Performance | table Cycle Time with Uniform Wall Thickness Distribution | Mold Type | Custom Vertical Tank Mold |
| Custom Capability | Full Custom Design Based on Client Drawings or Tank Requirements | Capacity Range | 0.2T–30T |
| Supply Ability | 10 | Brand Name | SunMore |
| Certification | CE/ISO9001 | Model Number | Hollow plastic products |
| Place of Origin | China Jiangsu | ||
| High Light | 30 Ton Rotational Molding Mold ，Custom Roto Mold Manufacturers ，Rotational Moulding Water Tanks | ||
0.2–30 Ton Rotational Molding Mold For Water Tank
Product Overview
In large tank manufacturing from 1 ton to 30 tons, traditional welded structures often cause leakage, uneven wall thickness, and unstable strength.
Rotational molding molds use heating and biaxial rotation to distribute material evenly, forming a seamless structure and improving durability.
The mold supports up to 3150mm diameter and 4150mm height, suitable for industrial and agricultural applications.
Problem
Why is large tank production difficult to control
Uneven wall thickness reduces strength
Welded structure leads to leakage risk
Large size causes inconsistency
Poor heat transfer affects molding quality
Cause
The main causes are
Low thermal conductivity of molds
Steel molds create uneven heating
Improper structural design
Opening and flange mismatch causes stress concentration
Solution
Rotational molding mold provides
High thermal conductivity for uniform thickness
Support for large size up to 30 tons
Custom opening and flange design
Compatibility with gas and electric heating systems
Result is seamless structure and stable mass production
Specifications
|
Parameter |
Value |
|---|---|
|
Mold Type |
Vertical Tank Mold |
|
Material |
Aluminum Alloy / Steel |
|
Capacity |
0.2T – 30T |
|
Max Diameter |
3150 mm |
|
Max Height |
4150 mm |
|
Opening |
370 – 660 mm |
|
Heating |
Gas / Electric |
|
Cooling |
Air / Water |
|
Customization |
Full Support |
Application
Used in chemical storage tanks and industrial containers
Used in irrigation and agricultural water systems
Used in municipal and infrastructure storage systems
How It Works
Plastic material is loaded into the mold, heated and rotated, forming an even layer on the inner surface and creating a seamless structure after cooling
Key advantages are uniform thickness, no welding, and stable strength
How To Choose
Key selection factors include
Capacity requirement with standard molds below 5 tons and custom molds above 10 tons
Material selection with aluminum recommended
Size capability for large diameter production
Design flexibility for openings and connections
FAQ
Q1 What is the maximum capacity
A Up to 30 tons
Q2 Is aluminum necessary
A Recommended for better heat transfer
Q3 Can it be customized
A Yes, fully customizable
Q4 What materials are used
A PE and LLDPE
Conclusion
For large capacity tanks, seamless structure, and stable production, rotational molding aluminum molds are the optimal solution
Company Details
Business Type:
Manufacturer
Year Established:
2026
Total Annual:
>20 million
Employee Number:
>30
Ecer Certification：
Verified Supplier
Changzhou SunMore Rotomolding Technology Co., Ltd.With more than 15 years of experience in the rotomolding industry, Changzhou SunMore Rotomolding Technology Co., Ltd. is a modern comprehensive enterprise that integrates design, R&D, manufacturing, trading and investment. Our ... Changzhou SunMore Rotomolding Technology Co., Ltd.With more than 15 years of experience in the rotomolding industry, Changzhou SunMore Rotomolding Technology Co., Ltd. is a modern comprehensive enterprise that integrates design, R&D, manufacturing, trading and investment. Our ...
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