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Custom Steel Frame Rotomolded Septic Tank Mold, Thick Welded Steel Rotational Mould For Integrated LLDPE Underground Sewage Purification Tank Production

Brand Name:	SunMore
Model Number:	SUN-MOLD-SEPTIC-STEEL
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

Product Name:

Custom Steel Frame Rotomolded Septic Tank Mold, Thick Welded Steel Rotational Mould For Integrated LLDPE Underground Sewage Purification Tank Production

Mold Material:

Thick Industrial Carbon Steel Plate Cavity, Circular Full-Welded Carbon Steel Support Frame, High-Strength Steel Quick Lock Latches, Anti-Rust Connecting Bolts

Craft:

Carbon Steel Plate Cutting, Full Penetration Seamless Welding, Inner Cavity Grinding Polishing, Steel Frame Integral Reinforcement Welding, Surface Anti-Rust Primer Spraying

Standard Integrated Structure:

Thick Steel Septic Tank Mold Cavity, Circular Reinforced Steel Support Frame, Multi-Group Quick-Release Steel Locking Buckles, Positioning Connecting Flange, Pre-Reserved Pipeline & Manhole Forming Holes, Built-In Baffle Forming Structure

Applicable Venues:

Mass Production Of Integrated Buried LLDPE Septic Tanks, Rural Toilet Renovation Sewage Tank Manufacturing, Villa Underground Sewage Purification Tank Processing, Scenic Area Environmental Plastic Sewage Tank Molding

Custom Service:

OEM Customization Of Mold Cavity Size And Internal Structure, Adjust Cavity Inner Diameter, Height, Outer Rib Layout, Compartment Baffle Position And Pipeline Reserved Holes Based On Customer Finished Septic Tank Drawings

Application:

Custom Steel Frame Rotomolded Septic Tank Mold For Integrated LLDPE Underground Sewage Purification Tank Mass Production, Anti-Deformation Circular Frame Septic Tank Rotomold For Rural Renovation Ribbed Plastic Septic Tank Manufacturing, Polished Inner Cav

Packaging Details:

Wooden box

Supply Ability:

Can produce 8-10 molds per month

Highlight:

custom steel frame septic tank mold

rotomolded LLDPE sewage purification tank

thick welded steel rotomolding mold

Product Description

Custom Steel Frame Rotomolded Septic Tank Mold

This heavy-duty all-carbon steel rotational mold is engineered for mass production of one-piece buried LLDPE sewage purification septic tanks. Featuring thickened carbon steel plate construction with full penetration seamless welding, it delivers superior performance for underground sewage treatment applications.

Product Overview

Manufactured by SUNMORE ROTO, this rotational mold incorporates a circular reinforced integral steel support frame and multiple quick-release steel lock latches. Specifically developed for producing rib-reinforced anti-corrosion underground septic tanks, it serves rural toilet renovation, villa decentralized sewage discharge, and scenic environmental protection projects. Full OEM drawing customization is supported, allowing adjustments to tank cavity dimensions, external rib structure, internal compartment baffle positions, and pipeline reserved holes.

Key Features & Benefits

Thick Carbon Steel Full-Welded Cavity: Ensures stable heat absorption and uniform molding with clear, complete outer reinforcing ribs and smooth inner walls.
Circular Reinforced Integrated Steel Frame: Provides high rigidity anti-deformation structure that evenly bears rotary loads for extended service life.
Multi-Group Quick-Release Steel Lock Latches: Enables tool-free mold opening and closing, shortening production cycles and increasing daily output.
Pre-Reserved Forming Holes: Includes sewage inlet, outlet, and manhole cover openings that eliminate secondary cutting requirements.
Full Customization Capabilities: Supports customization of cavity volume, outer rib layout, internal compartment structures, and overall dimensions.

Product Specifications

Mold Material	Thick industrial carbon steel plate cavity, circular full-welded carbon steel support frame, high-strength steel quick lock latches, anti-rust connecting bolts
Production Craft	Carbon steel plate cutting, full penetration seamless welding, inner cavity grinding polishing, steel frame integral reinforcement welding, surface anti-rust primer spraying
Standard Structure	Thick steel septic tank mold cavity, circular reinforced steel support frame, multi-group quick-release steel locking buckles, positioning connecting flange, pre-reserved pipeline & manhole forming holes, built-in baffle forming structure
Applicable Scenarios	Mass production of integrated buried LLDPE septic tanks, rural toilet renovation sewage tank manufacturing, villa underground sewage purification tank processing, scenic area environmental plastic sewage tank molding
Custom Service	OEM customization of mold cavity size and internal structure, adjustment of cavity inner diameter, height, outer rib layout, compartment baffle position and pipeline reserved holes based on customer specifications

Application Scenarios

Rotomolded environmental plastic product manufacturers requiring mass production capabilities

Rural sewage treatment equipment factories serving toilet renovation projects

Villa and scenic environmental protection product suppliers needing anti-corrosion buried tanks

Rotational mold customization and wholesale merchants serving underground sewage tank production

Frequently Asked Questions

Can the cavity size, outer ribs and internal partition structure of this septic tank steel mold be customized?

Yes, full OEM customization is supported. We design and process the steel mold strictly according to your finished septic tank drawings, adjusting cavity dimensions, rib layout, baffle and pipeline hole positions as required.

What is the advantage of circular integral steel frame compared with ordinary square frame?

Circular frame bears rotary force evenly during rotomolding operation, preventing local stress concentration. This provides superior anti-deformation performance suitable for long-term continuous high-frequency production.

Is this steel septic tank mold compatible with mainstream rotomolding machines?

Standard connecting flanges and lifting lugs are reserved on the circular steel frame, making it compatible with swing arm, shuttle and carousel rotomolding equipment from most brands without extra transformation.

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

Kevin Wright

Guyana Apr 8.2026

trustpilot.com

Helpful (50)

We bought multiple sets of steel fuel tank molds for our industrial tank production line. Solid steel structure improves mould service life greatly, finished plastic fuel tanks feature even wall thickness and excellent tightness without leakage. The supplier completes OEM modification as per our drawings efficiently.

Gary Peterson

Indonesia Mar 12.2026

trustpilot.com

Helpful (16)

We purchased this 20-ton aluminum rotomold for oversized chemical storage tanks used in municipal critical infrastructure projects. After field commissioning, the optimized integral aluminum structure ensures uniform heat distribution across the huge mold body. The finished ultra-large tanks have consistent wall thickness without sagging or deformation. It perfectly meets the strict tank standard of US municipal infrastructure, and we plan to order another two sets for new government projects.

Robert Harris

Turks and Caicos Islands Feb 17.2026

trustpilot.com

Helpful (32)

We purchased a full set of integrated aluminum rotomold for rectangular HDPE water tanks. The space-saving integrated design greatly reduces our workshop placement area compared with split molds we used before. Mold surface finish is fine, finished square tanks have uniform wall thickness with no bubbles or deformation during rotomolding. Technical team helped us complete system docking quickly, stable quality for mass production, will add new tank size molds next year.

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products details

Custom Steel Frame Rotomolded Septic Tank Mold, Thick Welded Steel Rotational Mould For Integrated LLDPE Underground Sewage Purification Tank Production

custom steel frame septic tank mold

rotomolded LLDPE sewage purification tank

thick welded steel rotomolding mold

Overall Rating

Rating Snapshot

All Reviews

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