China Curtain Wall Aluminum Machinery Factory

Founded in 1996 · Nearly 30 Years of Excellence

Precision Door & Window Machinery Manufacturer

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China Thermal Break Aluminum Window Machinery Factory

Modern Factory · Automated Production Lines

200+ Professionals · R&D · QC · Global Supply Capacity

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China Construction Processing Machinery Manufacturer

Insulated Glass & UPVC Window Machinery

Complete Production Lines for Glass & Plastic Steel Windows

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About Us

Shandong Lebulang Precision Machinery Co., Ltd.

Founded in 1996, Shandong Lebulang Precision Machinery Co., Ltd. is a professional high-tech enterprise integrating R&D, production, sales and after-sales service. With nearly 30 years of deep cultivation in the door and window processing machinery industry, we focus on the research and manufacturing of high-precision aluminum alloy, industrial aluminum, curtain wall and insulated glass processing equipment, as well as full-series UPVC plastic steel window machinery. After decades of steady development, we have grown into a well-known industry and trade integrated manufacturer, continuously optimizing core equipment technologies such as thermal break knurling & inserting machines, CNC profile cutting and milling machines, and insulated glass production lines to meet the diverse and high-precision production needs of global customers. Adhering to the development philosophy of "Technological Innovation, Worry-free Service", we keep upgrading product performance and technical parameters to adapt to overseas market standards.

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About Us

Trusted by Manufacturers Worldwide

See how our equipment helps businesses scale production and improve precision.

10-Year Partnership

Dominica Window & Door Co.

A leading door and window manufacturer in Dominica has been our strategic partner for over 10 years. Starting with a single CNC cutting saw, they have gradually expanded their production line with our thermal break knurling machines, corner crimping equipment, and insulated glass processing lines. Today, they operate a full-scale factory equipped entirely with Lebulang machinery, serving both residential and commercial construction projects across the Caribbean.

The consistent quality and responsive after-sales support have made Lebulang our go-to supplier for a decade. Their equipment runs reliably day in and day out. — General Manager, Dominica Window & Door Co.

Production Upgrade

Curtain Wall Contractor · Southeast Asia

A major curtain wall contractor in Southeast Asia needed to upgrade their production capacity for a high-rise commercial complex project. We provided a customized solution including 5-axis CNC compound mitre saws, multi-spindle drilling machines, and gantry machining centers. The result: 40% faster production throughput and precision cutting accuracy within ±0.1mm, enabling them to complete the project ahead of schedule.

Turnkey Solution

Insulated Glass Factory · Middle East

A start-up insulated glass manufacturer in the Middle East partnered with us for a complete turnkey production line. From plant layout design to equipment installation and staff training, our team provided end-to-end support. Their fully automatic 2000mm vertical IG production line now produces 500+ units daily, meeting growing demand for energy-efficient building glass in the region.

Quality That Stands the Test of Time

Rigorous quality control at every stage — from raw materials to finished machines.

Raw Material Inspection

Incoming

Every steel component, electronic part, and pneumatic element undergoes strict incoming inspection against our quality standards. We source key components from reputable international brands to ensure durability and performance.

In-Process Quality Control

In Production

Our QC team performs inspections at each production stage — from welding and machining to assembly and electrical wiring. Critical dimensions are verified with precision measuring instruments to ensure ±0.1mm machining accuracy.

Pre-Delivery Testing

Pre-Shipment

Before shipment, every machine undergoes a minimum of 48 hours of continuous running tests. We verify cutting precision, milling smoothness, welding consistency, and overall system stability using actual production materials.

Export-Grade Packaging

Shipping

Machines are packed in fumigation-free wooden crates with reinforced shock-absorbing materials, suitable for long-distance sea freight. We offer multiple packaging options to protect your investment during transportation.

Frequently Asked Questions

Everything you need to know before placing your order

What is your minimum order quantity (MOQ)?

We accept orders for single machines as well as complete production lines. Whether you need one CNC cutting saw or a full factory setup, we are ready to serve you.

How long is the delivery time?

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Standard models are typically delivered within 15-30 working days after receiving the advance payment. Customized or non-standard equipment may require 30-45 working days depending on complexity.

What payment terms do you accept?

We work with standard T/T (Telegraphic Transfer) payment terms — 30% advance payment for production arrangement and 70% balance payment before shipment.

Do you provide installation and training services?

Yes. We provide lifelong free remote installation guidance and operation training via video call. For complete production line projects, on-site installation and training services can be arranged at additional cost.

What is the warranty period for your machines?

All our machines come with a 12-month warranty period starting from the date of arrival at the destination port. During the warranty period, we provide free replacement of defective parts (excluding consumables and man-made damage).

Can you customize machines according to our specific requirements?

Absolutely. We support OEM and non-standard customization for all series of equipment. Simply share your profile specifications, production capacity needs, or special process requirements, and our engineering team will design a tailored solution for you.

Why Choose Shandong Lebulang Precision Machinery?

30 Years of Expertise. 50+ Countries Served. One Reliable Partner.

Nearly 30 Years of Industry Expertise

Founded in 1996, we have spent nearly three decades specializing in door and window processing machinery. Our deep industry knowledge ensures every machine we deliver is built on proven engineering and real-world manufacturing experience.

Full-Range Product Portfolio Under One Roof

From thermal break aluminum equipment and curtain wall machining centers to insulated glass production lines and UPVC window machinery — we offer 5 complete product series with 100+ models, so you can source all your processing equipment from a single trusted supplier.

CE & ISO Certified Quality Assurance

All our machines comply with national manufacturing standards and international export regulations. CE certification and ISO 9001 quality system guarantee consistent product quality that meets European and global market import requirements.

In-House R&D with 20+ Senior Engineers

Our professional R&D team, composed of senior engineers with nearly 30 years of industry experience, independently develops core technologies for multi-axis curtain wall machining centers, thermal break knurling machines, and fully automatic insulated glass production lines.

Strategic Global Distribution Network

Our equipment sells well across China and is exported to dozens of countries and regions worldwide. We maintain stable long-term partnerships with local distributors — including a 10+ year strategic partnership with a distributor in Dominica — a testament to our reliable quality and service.

Lifetime After-Sales Technical Support

We provide lifelong free remote installation guidance, operation training, and troubleshooting services. Every machine comes with free spare parts kits, and our English-speaking sales team delivers efficient communication support for global customers.

Featured Products

Cutting-Edge Solutions for Thermal Break & Window Processing

High-Precision 800mm Heavy-Duty CNC Machining Center for Industrial Aluminum Profiles

800mm high-rigidity 3-axis CNC machining center purpose-built for industrial aluminum profiles. One-setup drilling, milling, tapping and end-face finishing on large-section extrusions, with repeatable positioning accuracy and a reinforced bed that handles long stocks without deflection

High-Precision 4-Head CNC Aluminum Curtain Wall Drilling Machine

.This 4-Head CNC Aluminum Curtain Wall Drilling Machine is engineered for high-precision, high-efficiency drilling of aluminum curtain wall profiles and facade components. Equipped with four independent CNC-controlled drilling heads, it delivers simultaneous multi-point drilling operations with exceptional accuracy and repeatability. Designed as a compact yet heavy-duty alternative to larger 8-head systems, this machine is ideal for manufacturers seeking to balance throughput, floor space, and investment cost.

CNC Heavy Duty Curtain Wall Notting Saw

Heavy Duty Curtain Wall Notching Saw is a professional heavy-duty cutting machine engineered exclusively for aluminum curtain wall, skylight, and facade profile end notching, angle cutting, and joint processing. It adopts a dual-saw-blade synchronous cutting design, integrating ±45° arbitrary angle cutting, end notching, and groove milling in one machine. With a heavy-duty cast iron body and high-precision linear guide motion system, it delivers stable performance and high efficiency for mass production of mullions, transoms, and connection brackets in unitized and stick curtain walls.Our Lebulang Brand is China Manufacturer.

High-Efficiency 1800 Vertical Washing Drying Machine for Insulated and Tempered Glass

This 1800 vertical washing drying machine is specifically engineered for the pretreatment of insulated and tempered glass. It adopts a vertical conveyor system to efficiently clean, rinse, and hot-air dry glass surfaces, ensuring optimal cleanliness and dryness before lamination or tempering. Key features include stainless steel brush rollers, high-pressure spray nozzles, and a circulating hot air drying section. Optional Low-E coating compatible mode is available. The machine supports continuous automated production and can be integrated into existing glass processing lines.

1600mm High-Efficiency Horizontal Insulated Glass Washing and Drying Machine

This 1600mm Horizontal Insulated Glass Washing and Drying Machine is engineered for high-efficiency cleaning of insulated glass units (IGUs) up to 1600mm in width. Featuring a fully automatic PLC control system, multi-stage washing with soft roller brushes, fresh water rinsing, and a high-power air knife drying system, it delivers spotless, moisture-free glass surfaces ready for sealing. The washing section is constructed from stainless steel for long-term corrosion resistance, making it suitable for processing float glass, tempered glass, and Low-E coated glass. An indispensable piece of equipment for double and triple glazing production lines.

High-Performance PVC UPVC Colorful Windows Profile Heavy-Duty Seamless Welding Machines with 4 Precision Heads

Engineered for high-end door and window manufacturing, this heavy-duty 4-head CNC welding machine delivers flawless, mark-free seamless corners on colored UPVC/PVC profiles. Featuring synchronous 4-head operation, digital precision control, and robust construction, it eliminates welding scars while maximizing production efficiency. The ultimate solution for premium window profile fabrication.

High-Precision CNC Glass Cutting Machine for Insulating Glass

The CNC Glass Cutting Machine for Insulating Glass is a high-precision, automated solution designed specifically for cutting glass sheets used in insulated glass unit (IGU) production. Equipped with a servo-driven control system, automatic loading table, and intelligent optimization software, it delivers clean, accurate cuts with minimal material waste. Compatible with various glass thicknesses and sizes, this machine integrates seamlessly into double glazing and IG production lines. Built for high throughput, energy efficiency, and operator-friendly control, it is a reliable choice for modern glass processing facilities.

High-Precision 1600 Insulating Glass Hot Press Machine

The 1600mm Insulating Glass Hot Press Machine is a high-efficiency, industrial-grade solution designed for the production of double glazing and insulated glass units (IGU). Equipped with a PLC control system, hydraulic pressing mechanism, and precise temperature control, it ensures uniform pressure distribution and strong, airtight bonding between glass panes. With a maximum processing width of 1600mm, this machine is ideal for architectural glass, curtain wall panels, and window & door insulated glass. Built for stability, energy efficiency, and low maintenance, it is widely used in insulated glass production lines worldwide.

Precision 140mm Aluminum Profile Corner Crimping Machine

Tired of weak corner joints and misaligned frames? Our 140mm hydraulic corner crimper locks aluminum profiles together with high-pressure precision—delivering seamless, gap-free corners every time. Boost your production speed and product quality with a machine built for reliability. Request a quote today.

Heavy-Duty 140mm Aluminum Profile Corner Crimping Machine

140mm Hydraulic Aluminum Corner Crimper – Delivers strong, precise, and burr-free corner joints for aluminum profiles. Heavy-duty design for windows, doors, and industrial fabrication.

High-Accuracy CNC Circular Saw for Industrial Aluminum Profiles

Maximize productivity and cut with confidence. Our CNC circular saw for industrial aluminum profiles combines heavy-duty construction with micron-level precision. From windows and doors to solar frames and curtain walls, achieve clean, burr-free cuts—every time. Request a quote today.

Precision CNC Circular Saw for Industrial Aluminum Profiles

High-precision CNC circular saw for industrial aluminum profiles. Fully automatic, heavy-duty, and built for clean, high-speed cutting with zero burr.

Email Us

susan@lblmachine.com

Call Us

+86-13020565028

Address

Zone B, Rural Revitalization Industrial Park, Xuanzhangtun Town, Qihe County, Dezhou City, Shandong Province, China

Send Inquiry

Your Partner in Precision Manufacturing

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