Plastic Welding Service
Not only welding, but also “precision plastic assembly。
What is Plastic Welding?
Plastic welding is a connection technology that melts and combines the contact surfaces of thermoplastics by heating or friction, and assembles them into complex parts or products.
Plastic Weld Capability
Leland provides a complete manufacturing path from precision CNC machining to permanent, high-strength Plastic Welding & Staking.We solve the assembly problems of complex components, especially good at handling vibration-free connections around sensitive electronic components.
Ultrasonic Welding
Ultrasonic welding uses high-frequency vibration to melt thermoplastics. It is fast, clean, and ideal for small precision parts like electronics and medical devices.
Laser Welding
Laser welding uses a focused beam to melt thermoplastics. It is non-contact, precise, vibration-free, and creates clean, hermetic seals for medical and electronic applications.
Hot Plate Welding
Hot plate welding melts thermoplastic surfaces using a heated platen. It creates strong, hermetic seals and is ideal for large or complex parts like automotive components.
What plastic can be welded?
Plastic welding only works on thermoplastics (plastics that soften when heated) and does not work on thermosets or elastomers
.Here are the most common weldable plastics:
| Material | Weldability & Key Properties | Common Applications |
| ABS | Excellent. One of the easiest and strongest plastics to weld. High impact strength | Automotive parts, electronic housings, Lego bricks. |
| PC (Polycarbonate) | Very Good. Strong and impact-resistant. Must be pre-dried before welding to avoid bubbles | Medical devices, automotive components, clear safety shields. |
| PMMA (Acrylic) | Very Good. Easy to weld but can be prone to stress cracking. Requires careful parameter control | Transparent panels, displays, lighting covers. |
| PS (Polystyrene) | Excellent. Rigid and easy to weld with fast cycle times | Disposable cutlery, CD cases, rigid packaging. |
| PP (Polypropylene) | Good. Weldable but requires precise temperature control as it burns quickly. High chemical resistance | Automotive bumpers, living hinges, chemical tanks. |
| PE (Polyethylene) | Good. Welds well, especially HDPE. Low-density (LDPE) is softer and takes more skill. Cannot be glued easily | Bottles, plastic containers, cutting boards, orthotics. |
| PVC (Polyvinyl Chloride) | Good. Weldable but must avoid overheating, which releases harmful gas and causes scorching | Pipes, fittings, electrical cable insulation. |
| PA (Nylon) | Good. Must be completely dry before welding (moisture ruins weld strength). High heat resistance | Gears, automotive components under the hood, snap-fit parts. |
Let’s Start a New Project Now
Pls upload the darwing for 2D & 3D, Our technical team will quote the price for your refereence in 24 hours。