Heatsink Design & Selection
Whether you're a large corporation introducing a new profile or a hobbyist exploring heatsinks for the first time,
from start to finish we'll guide you through and support your project every step of the way
From sourcing and stockholding to saw cutting, deburring, CNC machining and toolmaking.
We offer a large selection of heatsink services designed specifically to help customers sourcing heatsinks. Whether you need help in all heatsink areas or are just looking to outsource CNC machining, we can assist you.
Heatsink Sourcing & Stock Holding
A thermal solution designed just for you
Heatsink Design & Selection
GD Rectifiers specialise in providing cost-effective thermal management solutions and supplying thousands of aluminium heatsinks to customers each year. From complex water and oil cooled designs to heatsink accessories such as clamps and thermal compound, we have a solution for every project.
We understand that no heatsink project or requirement is rarely the same, which is why we offer a comprehensive range of heatsink services and solutions, designed with our customers in mind.
We offer a diverse range of standard heatsinks, including: aluminium heatsinks, forced air-cooled heatsinks, LED heatsinks, water and oil cooled heatsinks, solid fin heatsinks and hollow fin heatsinks.
Heatsinks in stock
Shop from over 160 heatsink designs with 50 heatsink profiles in stock to choose from. We provide access to a large range of heatsink accessories, including: clamps for capsules, busbar insulators, busbars for modules, AC and DC axial fans, thermal trips and thermal compound. We also offer a wide range of heatsink services, including CNC machining, extrusion and deburring.
GD Rectifiers works with customers directly on custom heatsink specifications, including size, profiles, deburring and finishing options. GD Rectifiers offers customers a bespoke and cost-effective service, by providing customised cooling solutions.
We offer the following thermal consulting services to simplify the heatsink design and sourcing process:
1. Custom Drawings
We can work to an existing drawing, or they can act as part of your design team or even as an independent design resource. Our engineers are ready to assist customers at any stage of the process to help identify the best thermal solution for your product.
2. CNC Machining
We offer a precision CNC machining and milling service at our factory in Burgess Hill. Our dedicated machinery is used purely for machining heatsink to bespoke outlines specified by customers.
We can skim, drill, and tap any heatsink from our range to customer specifications, no matter how complicated the design. Our CNC machines are up to 2000m with a saw capacity of 500mm x 200mm.
3. Extrusions in stock
We have a vast range of experience in heatsink design and ensure sufficient aluminium extrusion for our most popular profiles are always in stock.
4. Modifying existing heatsinks in stock
Depending on how quickly customers need heatsinks and depending on the quantity required, our design engineers might suggest modifying an existing heatsink in stock to meet the required delivery date.
GD Rectifiers would always suggest manufacturing a customised heatsink where possible, to give the best representation of the profile, however modifying an existing profile from stock is also an option.
5. Customised heatsinks suit applications where standard products don’t meet the design brief, such as a requirement for a specific thermal performance or where there is insufficient space. GD Rectifiers offer an expansive range of customisations, including surface finish, drilling patterns, tapping, milling, lengths and shapes, with a choice of anodised colours or bare finishes.
6. Finishing options
Heatsinks are available in a wide range of electroplating and metal finishing options including natural, clear, black, and red anodised finish, powder coating, alocrom, electroless nickel, bright nickel, zinc and clear passivate bright tin. If you require a finishing option that is not listed, please contact us to discuss your requirements.
7. Heatsink samples
GD Rectifiers can provide heatsink samples, whether you need just one or a batch of 20 initially. We can provide samples from stock or manufacture customised heatsinks. When requesting samples, it is always recommended to tell us what your predicted forecast is, along with any delivery schedules you have in mind. This helps our sales team to put together a quote based on your sample request and for your on-going requirements.
Helping you design custom heatsinks for your application
Whether you’re looking for one-off prototypes for personal, commercial, or educational use, or if you’re working on a large-scale project and need a full production run of heatsinks, we are here to help. We work closely with customers on the design process and would suggest putting in a scheduled or call-off order to secure the best possible pricing and ensure on-going supply.
GD Rectifiers has been designing and supplying heatsinks for customers in the rail, industrial, marine, LED lighting, renewable energy and oil and gas industries.
Our standard and customised heatsinks are most commonly found in:
- Uninterruptible power supplies (UPS)
- Variable speed motor controls
- Frequency converters in soft starters or large drives
- Welding units
- Electrical and industrial equipment
- Inverter modules in renewable energy systems
- Laser power supplies
- Traction and auxiliary power units in rail vehicles
Heatsinks can also be found in industrial facilities, solar thermal water systems, power plants, HVAC systems, gas water heaters, forced air heating and cooling systems, CPUs, and electronic systems.