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Woolf Rotational Moulding Workshop

Rotomoulding is an important plastic hollow moulding method, and should be an option in every product designer’s toolkit.

Rotomoulded parts are typically hollow and can range from very small up to many meters in size. Designs can incorporate a high degree of surface complexity, so a carefully designed rotomoulded part can replace many smaller parts resulting in considerable assembly cost savings.

Plastic is the usual moulding material which has many advantageous properties for a relatively low cost. The raw material does not require purging from the manufacturing equipment so very small batch sizes are possible. In fact, it is not uncommon to select a different colour for each product made.

There is a great deal of flexibility with design and processing method which allows you to achieve some very unique parts and come up with advanced solutions.

The Four Principal Stages of Rotational Moulding

Charging the mould
Heating the mould
Cooling
Demoulding

Frequently Asked Questions

Woolf gives you instant pricing and lead times for your custom parts. There are two ways get a quote and DFM feedback from our sales team.
1.Upload one or more 3D CAD file on our Get a Quote page
2.Send one or more 3D CAD file directly to Blairchen@woolfled.com
In most cases, we respond Quotation within 24 business hours of receiving an RFQ. If the quote is delayed, we will notify you as soon as possible.

Each project is assigned a technocal sales manager and a lead project engineer, who will be there from project launch to the delivery of your parts.

For quoting Woofmfg prefer 3D CAD file in format in STEP, IGES, X_T or STL.
2D CAD drawings with reference dimensions in format DWG and PDF.
All of the Woolfmfg processes are dependent on good 3D CAD solid models.

Woolfmfg rely on our reputation of working with hundreds of thousands of unique designs over many years, we always keeps customer information confidential and have a strict policy within our factory. If needed, we can sign an NDA with customers who require this documentation.

There is no minimum order quantity requirements at Woolfmfg.Our services can support you scale from one-off prototypes all the way to mid- and high-volume production.

Our standard terms are Ex Works (EXW) for rapid prototyping and regular production orders. This means the customer is responsible for shipping, customs clearance and all other associated fees once the goods have left our premises. We also offer terms of Delivery At Place(DAP) by DHL Express air freight, customers are responsible for import duties and fees associated with international shipping. Customers also have the option to use their own shipping accounts (e.g. DHL,FedEx or UPS) during checkout if applicable.

There is no single answer to this question but a few rules apply. For customers in USA, Prototypes to be used exclusively for development, testing, product evaluation, or quality control purposes,allow for a MFN Duty Rate of duty-free import into USA(US HTS Number: 9817.85.01.). Import duties vary widely between countries, and are dependent on the type of good being imported. Most countries in the world conform to the international Harmonized System (HS) codes that categorize virtually all commercial trade goods.

Each process is different and depends on part size, quantity required, and finishing requirements. Quality prototyping parts can be made in 3-9 days. Rapid injection molding may take 2-5 weeks to complete. More complex parts requiring or other special features will take longer. As for shipping, most of our shipments are via air freight, which can take a few days from China to Europe or North America.

Woolf accepts payment in two ways:
Bank to bank wire transfer. Woolf has accounts in Hong Kong and Dongguan, China.
Woolf can send you a PayPal invoice and you can use your PayPal account or credit card to pay.

Unless otherwise agreed upon, all new rapid prototyping customers must pay in advance, we will consider giving 30 days credit based on the order quantity after a period of cooperation between the parties.
Except in very special cases, all tooling orders require a 50% deposit in advance, even for clients who have credit terms. Typically the balance must be paid after T1 approval of samples. Terms are negotiable with each individual customer.

Application of rotational molding process

Laundry carts, chemical tanks, playground equipment, shipping containers, pallets, bins, trash cans, liners, secondary containment tubs, buoys, septic tanks, piping, barriers, agricultural tanks, bulk storage containers, machine housings, furniture, outdoor products, kayaks, canoes, planters, defense products and many more!

Machine housings
Trash cans
Equipment air duct
Auto Parts
购物车