Chair Mould

Plastic Armchair Mould

Premium plastic armchair mould with integrated armrests for enhanced comfort. Gas-assist injection technology ensures lightweight yet strong chairs. Perfect for cafes, gardens, and residential use.

Cycle Time

55-65 seconds

Mould Life

400,000+ shots

Material

Key Features

Gas-assist injection technology
Integrated armrests
Ergonomic backrest curve
Stackable design
Multiple color options

WhatsApp Us

Technical Specifications

Product Size	560 x 520 x 820 mm
Mould Size	950 x 850 x 1000 mm
Cavity	1 cavity
Steel	718H / S136
Hardness	30-34 HRC
Runner System	Hot Runner + Gas Assist
Ejection	Hydraulic + Air Assist

Applications

Gardens

Cafes

Balconies

Waiting Areas

Comfort Meets Manufacturing Excellence

Armchairs represent the premium segment of plastic seating. Our gas-assist technology enables manufacturers to produce chairs that rival wooden furniture in comfort while maintaining plastic's cost advantages.

Mediterranean Resort Chain Project

A Greek hotel group furnishing 50 properties needed outdoor armchairs that:

Matched their Mediterranean aesthetic
Survived coastal salt air conditions
Provided genuine comfort for extended sitting

Our solution combined ergonomic design with marine-grade material specifications.

Results:

98% guest satisfaction rating for outdoor seating
Zero chair replacements in 3 years of coastal exposure
30% weight reduction vs. previous supplier (logistics savings)

The Comfort Engineering Difference

Armchairs must balance multiple comfort factors:

Factor	Impact on Comfort	Our Solution
Seat angle	Primary	5° backward tilt
Armrest height	Critical	Ergonomic 250mm from seat
Backrest curve	Important	15° lumbar support angle
Flexibility	Comfort feel	Gas channels for controlled flex

Applications Beyond Hospitality

Our armchair moulds serve diverse markets:

Cafes and restaurants: Stackable for space efficiency
Garden and patio: UV-resistant formulations
Waiting areas: Commercial-grade durability
Residential: Premium appearance at accessible price

Gas-Assist Injection: The Technology Behind Premium Chairs

Understanding Gas-Assist Injection

Gas-assist injection moulding (GAIM) revolutionizes furniture production:

Process Comparison

Aspect	Conventional	Gas-Assist
Wall thickness	4-5mm uniform	2-3mm + hollow sections
Part weight	3.5kg	2.5kg (-30%)
Cycle time	70s	55-65s
Sink marks	Common	Eliminated

Gas Channel Design

Strategic gas channel placement creates structural hollow sections:

Channel Locations

Armrests: Primary gas channels, 60% hollow
Seat frame perimeter: Structural rigidity
Backrest ribs: Controlled flexibility

Channel Specifications

Entry diameter: 25mm
Taper ratio: 5% reduction per 100mm
Minimum wall: 3mm around gas channel

Structural Analysis

Despite weight reduction, gas-assist chairs exceed conventional chair strength:

Test	Conventional Chair	Gas-Assist Chair
Static load	150kg	150kg
Fatigue (100,000 cycles)	Minor deformation	No deformation
Impact (drop test)	Surface damage	No damage

The hollow sections act as shock absorbers.

Armrest Integration Challenges

Integrated armrests require careful engineering:

Undercut management: Sliding cores for armrest geometry
Weld line placement: Hidden under armrest
Strength testing: 50kg vertical load on each armrest

Mould Complexity Considerations

Gas-assist furniture moulds are complex:

4 sliding cores (2 per armrest)
Gas injection system integration
Extended cooling for thick sections
Hydraulic ejection with air assist

Why Choose Our Plastic Armchair Mould

30% weight reduction through gas-assist technology

Ergonomic design with 5° seat tilt and lumbar support

6-8 chair stacking capability

50kg armrest load capacity each side

Frequently Asked Questions

Common questions about our Plastic Armchair Mould

What is the weight difference with gas-assist technology?

Gas-assist reduces chair weight by approximately 30% (from 3.5kg to 2.5kg typical). This reduces material cost, shipping cost, and makes chairs easier for end-users to move.

How many armchairs can be stacked?

Our design allows 6-8 armchairs to be stacked safely. The armrest geometry is designed to nest without damage. Stack height is approximately 700mm for 6 chairs.

Is gas-assist equipment required at the production facility?

Yes, gas-assist injection requires a nitrogen gas system integrated with the injection machine. Most modern facilities have this capability. We can recommend equipment suppliers if needed.

What is the minimum order for custom colors?

The mould accommodates any color masterbatch. Minimum order for custom colors is typically 3,000-5,000 chairs depending on your production partner's requirements.

Can metal inserts be added for commercial durability?

Yes, we can design the mould to accommodate metal leg inserts for commercial/contract applications. This increases load capacity to 200kg+ and extends chair life significantly.

What is the UV resistance for outdoor use?

With UV-stabilized PP and appropriate masterbatch, our armchairs maintain color and strength for 5+ years of outdoor exposure. We recommend specific UV stabilizer levels based on your geographic market.