Plastic Office Chair Injection Moulding

Plastic Office Chair Injection Moulding refers to an office chair assembled by producing core structural parts such as seat pans, backrests, armrests, and five-star bases through plastic injection molding processes, combined with metal brackets, gas lifts, casters and other components. Its core feature is using the injection molding process to realize the integrated molding of large structural parts (such as the curved surfaces of seat pans and backrests). Key parts have high load-bearing capacity , fatigue resistance and ergonomic adaptability. Compared with traditional wooden office chairs or all-metal office chairs , plastic injection office chairs have the advantages of lightweight , controllable cost , and flexible design. They are widely used in office buildings, corporate offices, home offices, education and training scenarios, adapting to long-term office use needs of more than 8 hours.

P&M Plastic Office Chair Injection Moulding Introduction

1 Core Characteristics of Plastic Office Chair Injection Moulding

1. Integrated Molding of Large Structural Parts, Balancing Strength and Stability

Integrated/Split Design of Seat Pan and Backrest: Ergonomic office chairs adopt split injection molding of seat pans and backrests, and the two are assembled through metal connectors ;  simple models adopt integrated injection molding , and reinforcing ribs are made at the transition between backrest and seat pan, with flexural strength ≥80MPa;

High Load-Bearing Structure of Five-Star Base: The five-star base adopts a radial reinforcing rib design , and the injection material uses glass fiber reinforced PP or PA66 with static load-bearing ≥500kg, dynamic load-bearing ;

Uniform Wall Thickness and Stress Dispersion: The wall thickness of large parts is controlled at 2.5-4mm , and a gradual wall thickness design is adopted ;  key stress-bearing parts are rounded to disperse stress and avoid fracture risks.

2. Precise Ergonomic Adaptation, Improving Long-Term Office Comfort

In response to the fatigue problem of long-term office work, plastic injection molded parts are optimized ergonomically through structural design

3. Targeted Material Selection, Adapting to Diverse Usage Environments

The material performance requirements vary greatly in different office scenarios, and precise matching is required during injection molding

General office scenarios (office buildings, enterprises): ABS/PC alloy is used for chair seats and backrests, with a matte surface treatment that is resistant to dirt and easy to clean;

Wet environment (during the southern rainy season, near the pantry): Fiberglass reinforced PA66 (with a water absorption rate of ≤ 1.5% and better moisture resistance than PP) is used for five-star feet and handrails to avoid strength degradation caused by long-term humidity;

High frequency usage scenarios (call centers, training institutions): Adding anti fatigue agents to chair seats and backrests to improve material creep resistance and extend service life.

II Production Process of Plastic Office Chair Injection Moulding

1. Product Design and Mold Development

(1) Product Design

Structural design: Draw a 1:1 3D model of the office chair using CAD software, with a focus on designing parameters for the "S" curve of the chair back, layout of hollow holes in the chair seat, and distribution of five starred foot reinforcement ribs; Annotate key dimensional tolerances

(2) Mold development

Mold material: H13 hot work mold steel is used for large components such as chair seats and backrests; The five-star foot mold is made of NAK80 pre hardened steel due to high stress;

Mold cavity design: using single or double cavity molds (chair seat mold 1 mold 1 cavity, five-star foot mold 1 mold 2 cavities); For hollow structures, the mold is equipped with a core pulling mechanism to ensure complete hole formation;

2. Raw Material Preparation and Injection Molding

(1) Raw material pretreatment

(2) Injection molding

3. Assembly and Quality Inspection

P&M Plastic Office Chair Injection Moulding(Specification)

P&M Plastic Office Chair Injection Moulding Feature And Application

1. Corporate Office Scenario

Core Requirements: Simple and beautiful, strong durability, adapting to multi-person office environments, and compatible with various uses such as meetings and daily office work.

Product Features:

Plastic parts use ABS/PC alloy (scratch-resistant, easy to clean), and colors are mainly black and gray (adapting to office decoration styles);

The backrest adopts a simple flat design (with basic lumbar support), and the seat pan has no hollowing (to avoid document falling), with an overall weight of 25-30kg, easy to move;

The five-star base uses PA66+25%GF (load-bearing 500kg), and the casters are made of silent rubber (sliding noise ≤30dB) to avoid affecting the office environment;

Supports 3-level backrest reclining adjustment (100°, 115°, 130°), adapting to office sitting posture and short rest needs.

2. Home Office Scenario

Core requirements: high comfort, personalized appearance, space saving, suitable for small apartments and home decoration styles.

Product features:

The plastic components are made of PP+TPR composite material, and the chair straps have a hollow and breathable structure;

Chair seat width 450-500mm, foldable design, easy to store when not in use;

The armrest is detachable, and integrated functions such as cup holders and file bags are added (through injection molding) to enhance the convenience of working from home;

The overall weight is 20-25kg, and women can easily move around, suitable for use in different rooms of the home.

3. High-Frequency Usage Scenario

Core requirements: High durability, fatigue resistance, easy maintenance, suitable for scenarios such as call centers, training institutions, internet cafes, etc. that require more than 10 hours of daily use.

Product features:

Plastic components are made of glass fiber reinforced PA66 and ABS/PC alloy, with the addition of anti creep agents. After 100000 fatigue tests, the deformation rate is ≤ 3%

Customization Process

Factory&About US

NingBo Plastic Metal Product Co.,Ltd (P&M) is located in Yuyao, the so-called Mould City, Plastic Kingdom, in the southern tip of Hangzhou Bay Bridge,north of Shanghai, the east of Ningbo Port,tight double line of State Road 329 on land, sea and air trafic into a network to facilitate transport.

By the abundant technical strength,scientific management methods and good after-sales service, product deeply trusted and welcomed by customers from all over the world. P&M holds improved system of development and production, to achieve mold design, plastic products manufacturing and automatic production. Our main products is design and manufacturing of plastic mold, plastic product, metal product. 90% products of our enterprise are exported to America, Europe, Germany, Japan, Australia, etc. For many years, the company has been committed to the research of raw materials. The company has its own trademark and dozens of patents, providing more convenient technical support for mold making and product production. P&M started domestic business from 2008,named Shundi Mould Factory. And opened the international market from 2014. We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

P&M adheres to market-oriented to the quanlity of life and focus on quality service and continuous development of new products,determined to establish a better corporate image,and our friends at home and abroad to carry a wide range of business exchanges and cooperation, create brilliant.

Packing

Packaging according to your needs

1. By air ,it takes 3-7 days for delivery.

The goods can be shipped by DHL , Fedex , UPS .

2. By sea ,the delivery time is based on your port.

To South East Asian Countries takes about 5-12 days.

To Middle east countries takes about 18-25 days.

To European countries takes about 20-28 days.

To American countries takes about 28-35 days.

To Australia takes about 10-15 days.

To African countries takes about 30-35 days.

P&M Bike parts, centered around children, balances safety, health, and fun, aiming to add a bright color to children's beautiful childhood. We look forward to working together with you to serve our children.

The path of a child's growth is paved with bricks and tiles.

FAQ

1.Who are we?

We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2.How can we guarantee quality?

Always a pre-production sample before mass production;

Always final Inspection before shipment;

3.What can you buy from us?

Mould, Plastic Product, Metal Product, Dental Product, CNC machining.

4.Why should you buy from us not from other suppliers?

We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply: 3d design - 3d printing - mold making - plastic injection.

5.What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;

Accepted Payment Currency: USD, EUR;

Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;

Language Spoken:English,Chinese,Spanish,French,Russian.

6.What are the characteristics of your service?

1. Your inquiry related to our products or prices will be replied within 24 hours.

2. Well-trained and experienced staffs to answer all your enquiries in fluent English.

3. Offering the support to solve the problem in the application or selling period.

4. Competitive prices based on same quality.

5. Guarantee samples quality same as mass production quality.