Lee Spring Ltd - Plastic Springs

LeeP is our response to requests for plastic springs that combine the strength of metal with the attributes of high performing engineered thermoplastics. After many years of engineering design and materials research, Lee Spring’s team has developed this compression spring offering.

LeeP™ Springs offer many advantages including:

• Unique patent pending designs to maximize spring rates and cycle life, while minimizing solid height
• High strength to weight ratios that maximise performance and reducing mass
• Excellent stability of physical and mechanical properties at elevated temperatures up to 340°F
• High corrosion resistance and generally compatible with many chemicals such as strong acids, weak bases, aromatics, and ketones
• Non-magnetic material does not interfere with imaging and other Ferro-sensitive technologies
• Dielectric insulating material suitable for non-conductive applications
• Inert non-contaminating plastic composite protects product purity
• Low flammability and toxicity ensuring environmental safety
• Recyclable and compliant with most Global regulations including RoHS and REACH

LeeP Springs are designed to meet a range of spring applications where non-corroding, non-metallic, inert materials are preferred. These include:

• Medical products and processing equipment
• Pharmaceutical delivery devices
• Imaging and X-Ray equipment
• Food processing and packaging equipment
• Aerospace products
• Marine products
• Electronics and electrical equipment

• Water Purification systems
• Chemical environments
• Automotive interiors
• Pollution Control systems
• Semi-conductors
• Instrumentation
• Communication devices
• Cosmetics packaging equipment

 

Compression Springs are open-coil helical springs wound or constructed to oppose compression along the axis of wind. They are the most common metal spring configuration. They can be placed over a rod or inside a hole. When loaded, a compression coil spring pushes back against the load and tries to get back to its original size.

All our Compression Springs (with a couple of exceptions) have square and ground ends. Squared and ground end compression stock springs are good for:

• High Duty Springs
• Unusually Close Tolerances on Load or Rate
• Solid Height Minimisation
• Accurate Seating and Uniform Bearing Pressure
• Buckling Tendency Reduction

Our springs are ideal for automotive engines, stamping presses, lawn mowers, medical devices, cell phones and electronics to name a few.

REDUX™ Wave Springs are made to replace the round wire Compression Springs in applications requiring a tight load deflection specification in a small space.

Our Wave Springs occupy a small space relative to the amount of work they can do. In fact they can reduce the size and weight of the assembly by as much as 50%.

REDUX Wave Springs are made from one filament (Type 17-7 Stainless Steel flat wire) formed in continuous coils with uniform diameters and waves. They are manufactured in diameters from .375” (9.52 mm) to 1.25” (31.75 mm) to meet load requirements from 4 lbs (1.8 kg) to 30 lbs (13.6 kg).

Hefty Die Springs are usually priced at 1/2 or 1/3 the price of similar rectangular wire springs, giving a fantastic value package.

The features and benefits of our Hefty Die Springs are:

• Shot Peened - extends life
• Preset - prevents length loss
• Powder Coated - colour coated for identification
• Closed and Ground Ends - proper squareness and large bearing surface uses

They are ideal for clutches, brakes, farm machinery and aircraft mechanisms.

Torsion Springs are attached to components at each end. When the components rotate around the center of the spring, the spring attempts to push them back to their original place. They are subject to bending stresses and can store/release angular energy. They will also hold a mechanism in place deflecting the legs about the body axis.

Most Torsion Springs are used in applications like swing-down tailgates, clipboards, clothes pegs and garage doors to name a few. They can be very small in the electronics industry or much larger in chair control units.

Visit the website to find out more about out Torsion Springs.

The applications for Extension Springs are garage door assemblies, vise-grips, pliers, trampolines, washing devices, farm machinery, toys and automotive interiors to name a few.