Why Buyers Choose Our Factory

Strong Structure Engineering

Reinforced welded frame with tested load capacity.

In-house Fabrication

Laser cutting, tube bending, welding and powder coating.

OEM Customization

Size, wheel type, handle design, logo and packaging.

Stable Bulk Production

Reliable lead time for distributors and wholesalers.

Export Standard QC

Inspection before shipment with secure packaging.

Fast Communication

Professional quotation within 24 hours.

OUR CARTS & TROLLEYS SERIES

Library Cart

Platform Trolley

Warehouse Trolley

Cage Trolley

Tool Trolley

Film TV Trolley

Ideal for logistics centers, manufacturing workshops, and delivery services where durability and stability are paramount for transporting bulk items.

Platform Trolley

Description

Applications

Our heavy-duty platform trolleys are engineered for demanding industrial environments. Featuring a high-strength carbon steel frame and a reinforced non-slip deck, these carts offer a load capacity ranging from 150kg to 500kg. The ergonomic handle design ensures ease of maneuverability, while the wear-resistant polyurethane (PU) casters provide smooth, quiet movement across warehouse floors.

Library Cart

Cage Trolley

Warehouse Trolley

Tool Trolley

Film TV Trolley

Designed for quiet operation and sleek organization, our multi-tier library carts are a staple for educational and corporate environments. Constructed with precision laser-cut sheet metal and finished with a premium anti-rust powder coating, these carts feature V-shaped or flat shelves to keep books secure. The 360-degree swivel medical-grade silent casters allow for effortless gliding in noise-sensitive areas.

Perfect for public libraries, university archives, school classrooms, and office file management, combining aesthetic appeal with long-lasting structural integrity.

Maximize security and visibility with our industrial wire mesh cage trolleys. These security roll containers are fabricated from heavy-duty galvanized steel to prevent corrosion. The foldable mesh sides provide easy access while protecting goods from falling during transit. Equipped with lockable brakes and high-load bearing wheels, they ensure safety even on sloped surfaces.

Widely used in laundry facilities, retail stockrooms, and distribution centers for secure high-volume material handling and inventory storage.

Built for efficiency, our warehouse picking trolleys feature a modular design that can be customized with various handle configurations and wheel types (pneumatic or solid rubber). The thickened steel baseboard is designed to withstand impact and heavy daily use. With a focus on DFM (Design for Manufacturing), these trolleys balance lightweight agility with rugged structural engineering.

An essential tool for e-commerce fulfillment centers, supermarket stocking, and general warehouse logistics to streamline the order-picking process.

Stay organized with our professional-grade metal tool trolleys, featuring perforated side panels (pegboards) for custom hook attachments. These carts are built using CNC bending and precision welding for a seamless, heavy-duty finish. Multiple shelf layers provide ample storage for hardware, while the integrated push bars and lockable casters offer a portable workstation solution.

Optimized for automotive repair shops, CNC machining centers, maintenance departments, and DIY workshops where tool accessibility is key.

Our specialized film and TV production trolleys are designed to carry sensitive, high-value equipment. Featuring reinforced frames and oversized shock-absorbing pneumatic tires, these carts can navigate uneven outdoor terrain without vibrating delicate gear. The multi-level shelving is designed with high-lip edges to prevent equipment from sliding, finished in a non-reflective matte black coating.

The go-to choice for film sets, photography studios, and outside broadcast (OB) units for transporting cameras, lighting kits, and sound gear.

Structural Disassembly Diagram

Application Scenarios

How Custom Orders Work

Inquiry

Requirements
Discussion

Drawing & Design
(DFM)

Quotation&
Confirmation

Production

Quality
Inspection

Packing&
Delivery

After-sales
Service

Custom Your Trolley Based on Your Requirements

Heavy Duty
Construction

Safe &
Reliable

High Load
Capacity

Ergonomic
Design

Smooth Mobility
(Quiet Casters)

Corrosion
Resistance

Customizable Structure

OUR KEY FEATURES

Light Duty

Standard

Heavy Duty

Industrial

Ultra Heavy Duty

Load Capacity Options

Custom wheel systems and frame thickness available.

MATERIALS WE WORK WITH

Thickness: 0.4 - 18mm

Doing Metal: Since 2016

At Doing Metal, we don’t just cut and bend metal; we engineer solutions that power global industries. Based in Ningbo, China, we have spent the last decade perfecting the art of custom sheet metal fabrication, transitioning from a local workshop in 2016 to a high-tech manufacturing hub serving world-class clients like Hog Slat and major UK railway infrastructure projects. We have dedicated a decade to bridging the gap between complex engineering designs and tangible industrial excellence. Precision in Every Cut, Integrity in Every Partnership.

150+

10+

150M+

Years Experience

Parts Shipped

CooperativeCompanies

Driving Industrial Efficiency with German
Precision and 10 Years of Expertise

99%

Delivery
On-time

ISO

9001:2015
Certified

Partner Brand

Our Services

Precision metal fabrication tailored for your industry needs.

Laser Cutting

Utilizing advanced German TRUMPF laser cutting technology, we ensure high precision (±0.1mm) and clean edges for complex parts.

• Allowable sheet thickness: 0.5-18mm (depending on material)

CNC Bending

This manufacturing process uses dies to produce a U-shape, V-shape or channel shape along a straight axis in ductile materials.

• Allowable sheet thickness: 0.5-20 mm (depending on material)

Welding

Leveraging professional TIG/MIG welding and robotic automated welding, we provide high-strength and aesthetically clean joins for a wide range of materials.

• Capabilities: TIG, MIG, Spot Welding, and Robotic Welding for carbon steel, stainless steel, and aluminum.

Surface Treatment

We offer a full spectrum of finishing services to enhance corrosion resistance and aesthetic appeal, ensuring your parts meet both functional and visual requirements.

• Options: Powder Coating, Anodizing, Zinc Plating, Sandblasting, and Brushing (depending on material).

Assembly

From individual components to complex mechanical integration, our team provides full assembly services, including hardware installation and functional testing.

• Service Scope: PEM nut/stud insertion, mechanical fastening, sub-assembly, and final product packaging.

Production Workflow Chart:

Industries

Six key sectors we serve with tailored solutions.

Livestock

Solutions designed for animal care and farm efficiency.

Industrial

Robust equipment for manufacturing and production needs.

Home & Library

Precision-crafted metal systems for efficient library shelving and archival management.

Commercial & Self-service

Robust sheet metal enclosures and frames engineered for reliable performance in commercial and self-service terminal applications.

Electrical

Innovations powering your electrical projects safely.

Automotive & Transportation

Heavy-duty sheet metal components engineered for durability and reliability in agricultural machinery and transportation equipment.

FAQ

Are you a manufacturer?

We’re a direct factory with our own metal fabrication.

Can you make custom sizes?

Yes, we do OEM production based on your drawings or samples.

What is your minimum order quantity?

MOQ depends on the model and the level of customization you need.

Do you supply heavy duty trolleys?

Yes, we offer reinforced industrial trolleys for heavy loads.

Do you export to the UK?

Absolutely, we have experience handling overseas export orders.

How do I request a custom trolley quote?

Simply send us your drawings or samples, and we’ll prepare a tailored quote for you.

Frequently Asked Questions (FAQ)

1. What customization options do you offer for industrial trolleys?

As a direct manufacturer with 10+ years of experience, we provide full OEM and ODM services. You can customize the dimensions (length, width, height), load capacity (from 150kg to over 1000kg), material type (Carbon Steel, Stainless Steel, or Aluminum), and finishing (Powder coating in any RAL color, Galvanizing, or Chrome plating). We can also laser-cut your company logo into the metal frame for branding.

2. How do you ensure the quality and durability of your carts?

Quality is our priority. Our factory operates under ISO 9001 standards. We use high-precision TRUMPF laser cutting and CNC bending machines to ensure structural accuracy. Every batch undergoes a strict QC process, including welding strength tests and load-bearing inspections. For heavy-duty trolleys, we reinforce the stress points to prevent deformation under maximum weight, ensuring a long service life in rugged environments.

3. Can you help with the technical design if I only have a rough idea?

Absolutely. We specialize in DFM (Design for Manufacturing). If you don't have a formal technical drawing, our engineering team can create 2D or 3D CAD designs based on your sketches, photos, or functional requirements. We focus on optimizing the structure to balance strength and cost-effectiveness, ensuring the design is ready for efficient bulk production.

4. What types of wheels/casters should I choose for my trolley?

The choice of casters depends on your application environment. We offer Silent PU (Polyurethane) wheels for libraries and hospitals to minimize noise, Pneumatic rubber tires for outdoor or uneven terrain (like film sets), and Nylon or Steel wheels for heavy industrial floors. You can also specify lockable brakes, swivel, or fixed configurations to enhance maneuverability and safety.

5. What is the typical lead time for custom trolley orders?

For standard samples, the lead time is usually 7-10 days. For bulk production orders, it typically ranges from 25 to 35 days after drawing confirmation, depending on the complexity and quantity. Being located in the Beilun District of Ningbo, we are close to one of the world's largest ports, which allows us to provide efficient shipping and logistics arrangements for our international clients in the UK, North America, and Australia.

6. Do you have experience with international export standards?

Yes, we have a long history of exporting to over 100 countries. We understand international packaging requirements and use export-standard reinforced pallets or wooden crates to ensure your trolleys arrive without damage. We are familiar with the documentation needed for customs clearance and maintain stable partnerships with long-term clients worldwide, providing reliable after-sales support.

Need a trolley?

Tell us your trolley type, quantity, or send a drawing.

P

+86 18158549983

E

gao@doingmetal.com

Start Your Custom Trolley Project Today