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Roller-Coated Black Aluminum Spacer
Roller‑Coated Black Aluminum Spacer is high‑frequency welded insulating glass spacer bar processed by pre‑coating aluminum coil before forming. It solves the whitening risk on side edges during bending, delivers uniform black appearance for IGU units. Suitable for mass orders of architectural windows, doors and curtain‑wall projects, supports full‑range size selection and customized service
Features
Renqiu City Xinjian Metal Products Co., Ltd. is one of the most reliable manufacturers and suppliers of roller-coated black aluminum spacer in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale customized roller-coated black aluminum spacer from our factory. Also, free sample is available.
Manufacturer Profile
We are specialized manufacturer for full‑series insulating glass spacers, with mature production lines for welded aluminum spacer, warm‑edge spacer and supporting accessories. We accumulate rich experience in matching different glass‑processing devices. Strict quality control covers raw material incoming inspection to finished‑goods delivery. We support mixed‑spec orders and personalized custom demands for global processing‑plant clients
Q1: What factors should I confirm before placing order for roller‑coated black aluminum spacer?
A: Please confirm required model(A size), wall‑thickness, bent or non‑bent type, your equipment type (automatic bending machine or manual processing), expected order quantity. If you have special gloss requirement, please also notify us in advance
Q2: Does the black coating have volatile substance that may cause fogging inside insulating glass?
A: We adopt qualified industrial roller‑coated paint with low volatile content, which meets insulating‑glass accessory requirements. Under proper storage and production condition, it will not induce fogging. We suggest doing small‑scale fogging test for new project
Q3: What is the storage suggestion for roller‑coated black aluminum spacer?
A: Keep cartons in dry indoor warehouse, avoid long‑term direct sunlight and damp environment. Stacking height should not exceed safety limit, to prevent spacer bar deformation caused by heavy pressure
Q4: Can I mix multiple sizes within one container?
A: Yes, mixed‑spec consolidation service is available. We will calculate carton quantity and container loading capacity according to your size list, to maximize container utilization rate
Buyer FAQ
Quality Assurance & Relevant Qualification
We implement incoming inspection for aluminum coil and coating paint. Semi‑finished‑product sampling test includes welding seam strength, coating cross‑cut adhesion, bending simulation test. Final‑goods inspection covers dimension, wall‑thickness, surface appearance and pore status. We can provide inspection record for each batch. Third‑party laboratory test is acceptable if clients require for project tender submission
Product Information
Material & Specification Parameters
Raw material adopts 3003 series aluminum alloy, which balances tensile strength and bending ductility, avoiding crack occurrence during automatic high‑speed bending. Our roller‑coated black aluminum spacer covers common range 8.5A‑27A, including integer and half‑size types. Wall‑thickness choices contain 0.30mm,0.315mm,0.325mm for different processing requirements. Wall‑thickness deviation is controlled within ±0.025mm. Every single specification corresponds to fixed carton loading meterage, for example, 9.5A: 2400m/carton; 13.5A:1650m/carton; 19.5A:1250m/carton. Both bent‑type and straight non‑bent‑type can be supplied, helping factories select according to their own machine configuration
Production & Craft Highlights
The whole production flow follows coil pre‑coating → roller forming → high‑frequency welding → pore punching → surface inspection → packing. Pre‑roller‑coating on aluminum base ensures side section retains paint layer after profile shaping, solving the long‑standing defect that post‑sprayed spacers expose silver aluminum substrate after cutting and bending. Paint film thickness ≥12μm, side reserved coating layer reaches 1‑2mm, guaranteeing visual performance even after multiple times of bending operation. High‑frequency welding technology keeps aluminum substrate metallurgical property intact. Punching holes distribute evenly, hole size and spacing are optimized for 3A molecular sieve filling, maintaining stable moisture absorption capacity. The surface goes through visual full inspection to remove products with scratch, paint missing, burr and uneven welding seam
Product Advantages & Characteristics
- Outstanding bending adaptability: paint layer owns good ductility. Under normal bending radius, coating will not crack or peel off, reducing reject rate for glass deep‑processing workshops.
- Uniform matte‑black appearance: surface finish is stable batch‑to‑batch, color difference between different production lots is controlled within low range, good for finished‑IGU appearance consistency.
- Good anti‑aging & anti‑corrosion performance: roller‑coated paint resists ultraviolet ray and damp environment, suitable for windows applied in coastal and high‑humidity regions.
- Fine flatness performance: finished spacer bar features low torsion and little deflection, feeding smoothly on automatic production line, reducing jamming risk for automatic bending machine.
- Good compatibility with supporting materials: cooperate well with 3A molecular sieve, hot‑melt butyl sealant, two‑component silicone sealant, plastic corner connectors and other insulating‑glass auxiliary parts
Application Scenarios
Primarily used for insulating glass units produced by glass deep‑processing factories, covering residential aluminum‑alloy doors & windows, casement windows, sliding windows, commercial office building doors and windows, sun‑room glass components. Suitable for double‑glazing, triple‑glazing, low‑E coated insulating glass. Black surface matches dark‑colored window profiles, widely chosen for modern minimalist architectural style. The product fits small‑batch trial production as well as large‑volume repetitive order for continuous‑run production line
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