Plastic Beach Lounge Chairs Mould

Plastic Beach Lounge Chairs Mould from ZHONGYUE is engineered for durable resort furniture manufacturing. It features UV and chlorine-resistant polypropylene processing, ergonomic adjustable backrest design, and reinforced anti-sink ribs to improve structural stability and production efficiency.

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Product Description

Plastic Beach Lounge Chairs Mould – Custom Adjustable Chaise Longue / Reclining Sun Lounger Injection Mold Manufacturer

ZHONGYUE MOULD is a professional Chinese injection mold manufacturer supplying Plastic Beach Lounge Chairs Moulds / Adjustable Chaise Longue Molds (Resort Sun Loungers, Poolside Recliners, Waterproof Patio Beds) to global five-star resorts, beach clubs, cruise ship outfitters, and premium outdoor furniture brands. Unlike standard upright chairs, Beach Lounge Chairs are full-length reclining platforms (1.5m–2.0m long) designed for extended relaxation. They often feature multi-position adjustable backrests (3–7 locking positions) and must withstand constant exposure to saltwater spray, chlorine, intense UV radiation, and sand abrasion.

These molds are engineered for high-impact, UV-stabilized, and chlorine-resistant PP Copolymer (MFR 8–12) or ASA/PMMA blends for superior weatherability. Key challenges include preventing longitudinal warpage over the 2-meter span and molding the complex ratchet mechanism for the backrest. Our molds feature massive BeCu cooling circuits, optimized rib structures, and robust ejection systems to ensure a flat, stable, and comfortable lounger.

From minimalist single-piece loungers to luxury chaise longues with wheels and pillow headrests, we provide full DFM review focusing on structural load distribution and coastal material flow before steel cutting.

lastic Chair Mould specifications :

Item	Specification / Options
Mold Name	Plastic Beach Lounge Chair Mould (Adjustable Chaise Longue / Sun Lounger)
Cavity & Core Steel	Cavity: 718H (HRC 33–38) or 2738HH (stability). Core: 718H. Ratchet details: SKD61 (HRC 48–52).
Mold Type	Two-plate mold; Heavy-duty construction
Mold Base	LKM / DME Heavy-Duty (Weight 5.0T – 10.0T depending on size)
Cavities	1×1 standard (Due to massive size and shot volume)
Runner System	Cold runner (large Y-branch) std.;Hot Runner (YUDO/SYNVENTIVE 2–4 tips) highly recommended for large parts
Gate Type	Large Fan gate(s) or Edge gate(s) at the base/side
Ejection	Ejector sleeves (leg posts) + Long ejector pins (ribs) + Stripper bars
Cooling	Massive BeCu baffles throughout core & cavity; Isolated circuits for long flow
Venting	0.02–0.025mm parting-line vents +Enhanced venting for ASA/PMMA blends
Surface Finish	SPI B1/B2 satin (std.); VDI 27–30 matte texture optional (non-slip)
Mold Life Expectancy	≥500,000 shots (718H); ≥1,000,000 shots (full hardened setup)
Recommended Material	UV/Chlorine-Stabilized PP Copolymer, ASA/PMMA (Superior weatherability)
Design Software	UG NX, SolidWorks, AutoCAD, Moldflow (Fill + Cool + Warpage + Long Span Stress)
Tolerance Control	±0.3 mm general; Length flatness ±0.5mm; Ratchet tooth accuracy ±0.1mm
Mould material	Hardness	Mould life
P20	HRC 28-33	>300,000 shots
718	HRC 33-36	>500,000 shots
H13	HRC >43	>800,000 shots
2344	HRC >48	>800,000 shots
S136	HRC 48-52	>1,000,000 shots

Make your next Plastic Chair Mould project brighten!

What Is a Plastic Beach Lounge Chair Mould?

A Beach Lounge Chair Mould is a large-scale, heavy-duty tool designed to produce resort-grade reclining furniture:

Full-Length Reclined Profile — The chair lies almost flat (10–15° incline) with a length of 1.5m–2.0m. This creates significant challenges for cooling and warpage.

Adjustable Backrest Mechanism — Most feature a ratchet or locking pin system molded into the chair back, allowing users to set the angle (flat, reading, sitting).

Coastal Environment Resistance — Must resist fading (white/yellow/blue common), chalking, and embrittlement from sun, salt, and pool chemicals.

Ergonomic Contouring — Seat pan and backrest are deeply contoured for lumbar support and comfort during long use.

Key Mold Engineering Highlights (Beach Lounge Chair Mold)

Longitudinal Warpage Control (The #1 Challenge)

A 2-meter plastic part will naturally cup or twist. We design symmetric cooling circuits (BeCu baffles) on both sides of the core and cavity to ensure uniform temperature. We also design a slight pre-crown (0.2–0.3mm convex) into the mold surface to compensate for material shrinkage and ensure the lounger sits flat on the ground.

Ratchet Mechanism Molding

The adjustable backrest relies on molded-in ratchet teeth or locking slots. These thick sections cause sink marks. We use BeCu inserts directly behind the ratchet teeth and optimize packing pressure to keep the teeth sharp and functional without sinking the outer surface.

Coastal Material Flow Optimization

UV-stabilized, chlorine-resistant PP and ASA are viscous and sensitive to shear heat. We design large fan gates or multiple hot-drop gates to ensure gentle filling. Enhanced venting (0.02–0.025mm) prevents burn marks in the long flow paths.

Reinforced Rib Structure

To support a reclining adult (150kg+ static load) without excessive weight, we design a lattice of internal ribs. Ribs are kept at 60–70% of the wall thickness and feature gradual transitions to prevent stress concentrations and sink marks.

Robust Ejection for Large Area

Ejecting a 2m x 0.7m part requires many ejector pins to distribute force. We use ejector sleeves for leg posts and long ejector pins on internal ribs. Sometimes stripper bars are used along the sides to prevent bending the part during ejection.

Surface Finish for Coastal Use

Standard is SPI B1/B2 satin to hide sand scratches. Optional matte textured finish (VDI 27–30) provides a non-slip surface and better hides salt residue.

Our Manufacturing & Validation Process (Beach Lounge Chair Mold)

Long Span Warpage & Load DFM — Analyze 2m-long rib layout. Run Moldflow to predict longitudinal warpage and sink marks. Design massive BeCu cooling strategy. Simulate 150kg static load. Free DFM report.

Massive Steel Machining — Rough machining of huge cavity and core blocks. Deep-hole gun-drilling for kilometers of cooling lines.

Ratchet Mechanism Fitting — Precision grind SKD61 ratchet cores. Ensure sharp teeth and smooth movement.

Assembly & T1 Trial — Assemble ejector system. Run T1 trial with specified ASA/PP. Perform static load test (150kg) and adjustability test (ratchet clicks). Check flatness and sink marks. Supply trial video + samples.

Final Delivery — Heavy-duty packaging. Provide mold maintenance guide for ratchet mechanism cleaning.

Why Choose ZHONGYUE MOULD for Your Beach Lounge Chair Mold?

Long Span Experts — We specialize in controlling warpage on 2-meter+ plastic parts.

Coastal Material Specialists — We optimize molds for UV/Chlorine-resistant PP and ASA, preventing burn marks and ensuring flow.

Massive Cooling Design — BeCu baffles ensure fast cycles and flat parts, even at 10kg+ shot weights.

Functional Mechanism Focus — We ensure the adjustable backrest ratchet works smoothly for the life of the mold.

Global Experience — Molds supplied to resort developers in the Maldives, Caribbean, Mediterranean, and Southeast Asia.

Frequently Asked Questions — Beach Lounge Chair Mould

Q: How do you prevent a 2-meter lounger from warping?

A: We use symmetric BeCu cooling on both sides of the mold and design a slight pre-crown (0.2–0.3mm convex) into the mold surface to compensate for shrinkage.

Q: Can you mold the adjustable backrest in one piece?

A: Yes, the backrest is usually integrated. The challenge is molding the ratchet teeth inside. We use BeCu cooling and optimized packing to keep the teeth sharp without sinking the outer surface.

Q: What material is best for beach loungers?

A: ASA/PMMA blend is best for superior color retention and UV resistance (no fading for 5+ years). UV-Stabilized PP is a cost-effective alternative with good impact resistance.

Q: How big of a machine do I need?

A: For a standard 1.8m lounger, expect a shot weight of 5–8kg. You will need a 1000T to 1800T injection molding machine.

Q: What do you need for a quotation?

A: 2D drawing (PDF/DWG) + 3D model (STP/IGS) of the lounger, specifying material (PP/ASA), color, and required load capacity/adjustability positions.

Request a Quote for Your Plastic Beach Lounge Chair Mould

Send your beach lounge chair drawings or specifications to ZHONGYUE MOULD. We will provide a comprehensive DFM analysis (covering warpage, cooling, and mechanism function) + formal quotation within 48 working hours.

How we processing the project?

About us

Driven by the philosophy:

“Quality Makes the Future, Focus Creates Professional”

Zhongyue Mould is a leading company in the plastic injection air conditioner Cover mould industry. Our highly experienced team of engineers and designers have many decades of combined experience in plastic air conditioner Cover mould design and manufacturing. We provide a comprehensive service, specializing in the production of high-quality and high-precision air conditioner Cover moulds. We have also assisted numerous customers in customizing various types of plastic air conditioner Cover moulding lines.

We can also offer comprehensive assistance in the management of your production process. The procurement department will purchase high-quality raw materials, while the technical department will select the appropriate plastic formula. In accordance with the parameters of the plastic air conditioner Cover mould life requirements and market positioning, we will select the most suitable plastic air conditioner Cover parameters, structure, etc. Our extensive production capacity allows us to deliver plastic air conditioner Covers promptly, at competitive prices and with guaranteed quality.