Fire Alarm Plastic Injection Mold Suppliers with 23+ Years Expertise

This client is from Italy, whose company has been designing, manufacturing, and selling security products since 1975. He chose Alpine Mold as his manufacturing partner because we are one of the most trusted plastic injection mold suppliers, known for our rich experience for manufacturing fire alarm projects and timely communication. The client was highly satisfied with all plastic parts of the fire alarm we produced. Just two months later, he placed another bulk order of 10,000 sets and invited us to join a new project for a digital interphone.

Fire alarms are a critical component of fire safety systems and must be durable, reliable, and high-performing. As one of the leading plastic injection mold suppliers, we understand the importance of precision and safety. Our customer had two key requirements for this product:

1. Material Specification:

• Some covers needed PC material.

• The outer shell and inner parts were required to be made from durable, high-impact plastics resistant to heat, moisture, and UV radiation.

2. Surface Appearance:

• Some plastic housings required silk screen printing as secondary operations.

• A high-quality appearance was essential to match the overall aesthetic of the fire alarm.

As one of the top plastic injection mold manufacturers, Alpine Mold provided a one-stop solution including expert advice, mold design, plastic injection mold manufacturing, injection molding, and post-processing services.

We made four precise fire alarm injection molds for this client:

• One PC lens

• One bottom cover

• One top cover

• Three different inner parts

1. PC Material for Lens and Inner Part

The lens and one inner part were made from PC (polycarbonate) material—well known for being wear-resistant, scratch-resistant, and offering excellent light transmission.The finished lens had 85%–90% transparency, and the printed inner part featured a hardened surface with a beautiful finish.The client was very impressed with the clarity and durability, giving us strong positive feedback.

2. Flame-Retardant ABS for Other Parts

We recommended flame-retardant ABS, which is:

• Heat resistant

• Impact resistant

• Tough

• Self-extinguishing (it stops burning when the fire source is removed)

This choice helped ensure the fire siren housing would not ignite, melt, or spread flames in case of fire.
This aligns with the standards expected from reliable Plastic Injection Mold Suppliers for safety products.

3. Silk Screen Printing for Top Cover & Inner Part

Silk screen printing was applied on both the top cover and one inner part.This method was ideal for adding the client’s logo and other branding elements.For the initial order of 5,000 pcs, silk screen printing was more cost-effective than other secondary operations. Below are photos showing the silk screen results after the plastic injection molding process.