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Custom 31L Food Grade Insulated Cooler Box, One-Piece Seamless Rotomolded Waterproof Box For Central Kitchen Food Delivery

Brand Name:	SunMore
Model Number:	SUN-ROTO-COOLER31
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 Shockproof Waterproof Rotomolded Shell, Food Safe Anti-Corrosion LLDPE Material, Thick Foam Long-Duration Constant Temperature Insulation, Tight Silicone Sealing With Stainless Steel Latches, Large Unobstructed 31L Inner Cavity Without Dividers, C

Brand:

SUNMORE

Product Name:

Custom 31L Food Grade Insulated Cooler Box, One-Piece Seamless Rotomolded Waterproof Box For Central Kitchen Food Delivery

Craft:

One-Step Seamless Rotational Molding, Integral Interlayer PU Foam Filling, Hardware Fitting Assembly, Surface Matte Anti-Slip Treatment

Applicable Venues:

Central Kitchen Mass Catering Distribution, Chain Restaurant Long-Distance Food Delivery, Seafood Wholesale Cold Chain Transport, Aquatic Market Fresh Temporary Storage, Outdoor Large Batch Fresh Food Preservation

Custom Service:

OEM Customization Of Box Exterior Color, Surface Silk-Screen Logo And Outer Anti-Slip Rib Layout; Adjust Overall Box Dimension And Insulation Thickness According To Central Kitchen Catering Transport Drawings

Application:

Custom 31L Food Grade Insulated Cooler Box For Central Kitchen Food Delivery, Shockproof Large Capacity Rotomolded Thermal Cooler Box Without Inner Dividers For Seafood Cold Chain Transport, Leakproof Long-Time Heat Preservation Box For Mass Cooked Food De

Waterproof Shockproof Advantage:

One-piece Seamless Rotomolded Shell, No Soup Or Seawater Leakage During Repeated Central Kitchen Turnover

Highlight:

31L food grade cooler box

seamless rotomolded insulated box

waterproof cooler for food delivery

Product Description

Custom 31L Food Grade Insulated Cooler Box

One-Piece Seamless Rotomolded Waterproof Box For Central Kitchen Food Delivery

Product Overview

This 31L large-capacity commercial thermal turnover container is manufactured via integral rotational molding process using thick food-contact LLDPE raw material to form a seamless outer shell. Filled with full high-density PU foam thermal insulation interlayer and matched with sturdy stainless steel spring latches and full-circle food-grade silicone sealing gaskets, this model offers a full open unobstructed inner cavity for bulk cooked meals and fresh ingredients storage.

The 31L large-volume insulated cooler box is widely suitable for central kitchen mass food distribution, chain restaurant long-distance catering delivery, seafood wholesale cold chain transport, aquatic market fresh temporary storage and outdoor bulk food fresh-keeping. We supply full OEM customization service, supporting custom box exterior color, surface silk-screen logo and external anti-slip convex rib layout.

Key Features & Benefits

One-Piece Seamless Rotomolded Outer Shell: Shockproof & 100% waterproof leak-proof construction resists severe bumping and collision during central kitchen repeated turnover.
Food-Grade Thickened LLDPE Raw Material: Non-toxic, anti-corrosion material that resists erosion of fruit acid, food sauce and seawater, meeting commercial catering hygiene standards.
Full PU Foam Filled Interlayer: Provides stable long-time thermal insulation, keeping hot food warm or seafood cold for 8-12 hours continuously under normal ambient temperature.
Heavy-Duty Stainless Steel Spring Latches: Combined with full surround silicone sealing strip for tight closure, reducing temperature loss and improving overall thermal insulation effect.
31L Large Open Inner Cavity: Spacious empty inner space without internal partitions, no storage space restriction for bulk central kitchen meals with multi-scenario customization options.

Product Specifications

Raw Material	Food grade thickened modified LLDPE polyethylene, high-density PU foam insulation layer, stainless steel spring latches, food-grade silicone sealing rubber strips
Production Craft	One-step seamless rotational molding, integral interlayer PU foam filling, hardware fitting assembly, surface matte anti-slip treatment
Standard Structure	31L integral rotomolded cooler box body, closed PU foam thermal insulation interlayer, double stainless steel spring lock latches, full-circle silicone sealing gasket, anti-slip bottom convex ribs, no built-in inner dividers
Applicable Scenarios	Central kitchen mass catering distribution, chain restaurant long-distance food delivery, seafood wholesale cold chain transport, aquatic market fresh temporary storage, outdoor large batch fresh food preservation
Custom Service	OEM customization of box exterior color, surface silk-screen logo and outer anti-slip rib layout; adjust overall box dimension and insulation thickness according to central kitchen catering transport drawings

Application Scenarios

Central kitchen and chain catering equipment manufacturers
Cold chain logistics and seafood wholesale suppliers
Restaurant group catering and food distribution merchants
Outdoor catering and fresh food wholesale vendors

Frequently Asked Questions

Can the box color and printed logo of this 31L insulated cooler box be customized?

Full OEM customization is supported. We adjust box appearance color and silk-screen logo strictly based on customer central kitchen usage drawings. This model is designed without built-in inner dividers.

How long can this rotomolded cooler box keep constant temperature for central kitchen hot meals?

Under normal indoor temperature, it can maintain stable heat preservation for cooked food and cold preservation for seafood for 8-12 hours; matching ice packs can further extend constant temperature time.

Is the LLDPE material safe for direct contact with catering food and seafood?

Yes, the raw material obtains food contact safety certification, non-toxic and odorless, resistant to seawater and fruit acid corrosion, safe for central kitchen food and seafood storage.

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

Mia Horvat

Switzerland May 13.2026

trustpilot.com

Helpful (63)

Great value for money. Compared with other brands, SUNMORE's molds have longer service life and more reasonable prices. We plan to expand our order quantity next time.

Ivana Fuentes

Brazil Apr 7.2026

trustpilot.com

Helpful (36)

We purchase full range tapered rotomolded barrels from 50L to 5000L to match diversified raw material storage of our integrated chemical factory. The tapered design facilitates complete material pouring without leftover residue, seamless one-piece PE structure prevents leakage of granular and mild corrosive liquid raw materials.

Carmen Fuentes

Chile Jan 20.2026

trustpilot.com

Helpful (32)

We adopt these 100L round LLDPE tubs with high-low edge design for seafood and fruit food processing workshop storage and turnover. Food-grade LLDPE material complies with food safety standards, seamless rotational molded barrel body prevents liquid leakage when storing pickled products and raw seafood.

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Rotomolding Mold

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Forklift Storage Containers

Rotomolding Machine

Amusement Slide Rotomolding Mold

products details

Custom 31L Food Grade Insulated Cooler Box, One-Piece Seamless Rotomolded Waterproof Box For Central Kitchen Food Delivery

31L food grade cooler box

seamless rotomolded insulated box

waterproof cooler for food delivery

Overall Rating

Rating Snapshot

All Reviews

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