- 2026-09-03
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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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.
01
Raw Material Inspection
IncomingEvery 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.
02
In-Process Quality Control
In ProductionOur 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.
03
Pre-Delivery Testing
Pre-ShipmentBefore 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.
04
Export-Grade Packaging
ShippingMachines 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
Q
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.
Q
How long is the delivery time?
−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.
Q
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.
Q
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.
Q
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).
Q
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
4M CNC Machining Center with Automatic Tool Changer (ATC)
Purpose-engineered for high-volume architectural aluminum fabrication, this 4-meter CNC machining center redefines efficiency in long-profile processing. Unlike conventional short-bed machines that rely on repeated repositioning, it executes full-length drilling, tapping, milling, and slotting in a single cycle—eliminating cumulative errors and guaranteeing flawless linear accuracy across every meter. Powered by a high-speed electrospindle, a seamless automatic tool changer (ATC), and servo-driven clamping, it delivers ±0.1mm precision with industrial-grade repeatability. Designed for manufacturers who refuse to compromise between throughput and quality, it slashes labor dependency, minimizes material handling, and provides the ultimate scalable solution for system windows, premium façades, and curtain wall systems.
4M CNC Machining Center for Aluminum Profiles
Purpose-engineered for high-volume architectural aluminum fabrication, this 4-meter CNC machining center redefines efficiency in long-profile processing. Unlike conventional short-bed machines that rely on repeated repositioning, it executes full-length drilling, tapping, milling, and slotting in a single cycle—eliminating cumulative errors and guaranteeing flawless linear accuracy across every meter. Powered by a high-speed electrospindle, a seamless automatic tool changer (ATC), and servo-driven clamping, it delivers ±0.1mm precision with industrial-grade repeatability. Designed for manufacturers who refuse to compromise between throughput and quality, it slashes labor dependency, minimizes material handling, and provides the ultimate scalable solution for system windows, premium façades, and curtain wall systems.
4M CNC Drilling and Milling Machining Center
Engineered for high-throughput architectural aluminum fabrication, this 4-meter CNC machining center is built to handle long-span profiles with uncompromising precision. Unlike standard short-bed machines, it processes full-length window, door, and curtain wall profiles in a single cycle—eliminating mid-profile repositioning and ensuring perfect linear accuracy. Equipped with a high-speed electrospindle, automatic tool changer (ATC), and servo-driven clamping system, it seamlessly executes drilling, tapping, milling, and slotting operations with ±0.1mm accuracy. Designed for manufacturers who demand both volume and versatility, it drastically reduces labor costs, minimizes material handling, and guarantees consistent quality across every meter of the profile
4-Meter CNC Drilling & Milling Center
Engineered for high-throughput architectural aluminum fabrication, this 4-meter CNC machining center is built to handle long-span profiles with uncompromising precision. Unlike standard short-bed machines, it processes full-length window, door, and curtain wall profiles in a single cycle—eliminating mid-profile repositioning and ensuring perfect linear accuracy. Equipped with a high-speed electrospindle, automatic tool changer (ATC), and servo-driven clamping system, it seamlessly executes drilling, tapping, milling, and slotting operations with ±0.1mm accuracy. Designed for manufacturers who demand both volume and versatility, it drastically reduces labor costs, minimizes material handling, and guarantees consistent quality across every meter of the profile
3+2 Axis CNC End Miller for Special-Shaped Aluminum Mullions | Window & Curtain Wall Machinery
.Purpose-built for architectural aluminum and façade manufacturers, this advanced 3+2 axis CNC end miller solves the industry’s most persistent challenge: achieving flawless end-milling on complex, irregular mullion profiles. By integrating three high-rigidity CNC axes with a tilting spindle, it executes multi-angle face milling, step-cutting, and chamfering in a single setup—eliminating cumulative positioning errors and guaranteeing seamless, gap-free assembly in premium system windows and curtain walls. With servo-driven accuracy (±0.1mm), automatic tool calibration, and intelligent program storage, it drastically reduces labor dependency, scrap rates, and changeover times, making it the definitive solution for both high-mix custom projects and high-volume production lines.
Industrial CNC 3+2 Axis Multi-Angle End Miller for Special-Section Aluminum Mullion Profiles
Purpose-built for architectural aluminum and façade manufacturers, this advanced 3+2 axis CNC end miller solves the industry’s toughest challenge: machining complex, irregular mullion profiles with absolute precision. By combining three linear CNC axes with a tilting spindle, it performs multi-angle end milling, step-face machining, and chamfering in a single setup—eliminating cumulative errors and ensuring seamless, gap-free assembly in system windows and curtain walls. With servo-driven accuracy (±0.1mm), automatic tool setting, and multi-profile program storage, it reduces labor dependency, minimizes scrap, and accelerates changeovers, making it the definitive solution for both high-mix custom projects and high-volume production.
Multi-Angle 3+2 Axis CNC End Miller for Irregular Aluminum Mullion Profiles
Engineered for the demanding needs of architectural aluminum fabrication, this advanced 3+2 axis end miller delivers unmatched versatility in machining complex mullion profiles. Unlike standard 3-axis machines, its tilting spindle enables precise multi-angle cutting, stepped faces, and chamfering in a single setup—eliminating cumulative errors and ensuring seamless assembly for system windows and curtain walls. With servo-driven accuracy (±0.1mm), automatic tool setting, and multi-profile program storage, it drastically reduces labor costs and setup times, making it the ideal solution for high-mix, low-volume custom projects and high-volume production alike.
High-Precision 3+2 Axis CNC End Miller for Special-Shaped Aluminum Mullions
3+2 Axis CNC Multi-Angle End Milling Machine for Special-Shaped Aluminum Mullions Engineered for high-precision machining of complex aluminum mullions and curtain wall profiles, this 3+2 axis CNC end miller delivers multi-angle cutting in a single setup. It features a tilting spindle (0°–90°), servo-driven positioning, and automatic tool setting to process special-shaped, stepped, and angled profiles with ±0.1mm accuracy. Designed for window, door, and façade manufacturers, it reduces labor, minimizes setup changes, and ensures seamless mullion-to-frame assembly.
Dual-Motor Aluminum Profile Thermal Break Inserting Machine
Unlike single-motor systems, this dual-motor thermal break machine gives you independent control over knurling and strip insertion heads. Each motor drives its own process—precision tooth-rolling on the profile groove, followed by accurate PA66 strip feeding—ensuring perfect synchronization without compromise. CNC-adjustable head positions, pneumatic clamping, and heavy-duty construction make it the go-to solution for high-volume thermal break aluminum production lines.
Dual-Motor Thermal Break Knurling Strip Insertion Machine
The Dual-Motor Thermal Break Knurling & Strip Inserting Machine integrates precision knurling and PA66 strip insertion into a single, high-efficiency process. Independent drive heads ensure synchronized operation and accurate profile positioning, while variable frequency control delivers consistent feed rates up to 70m/min. Engineered for aluminum window, door, and curtain wall manufacturers who demand high-shear strength thermal break profiles and reliable production output
550 CNC Outward Swing High-Volume Production Miter Saw, 45°/90°
Unlike inward-tilting saws that sacrifice loading space, the 550 CNC Outward Swing Saw swings its cutting heads outward—creating a clear, open work area for effortless placement of long profiles. 550mm blades, CNC angle control at 45°/90°, and pneumatic clamping ensure every cut is precise, burr-free, and production-ready. Ideal for curtain wall, aluminum window, and UPVC door production lines.
550 CNC External Pivot Precision Miter Saw, 45°/90
The 550 CNC Outward Swing Precision Cutting Saw is built for high-volume 45° and 90° cutting of aluminum, UPVC, and curtain wall profiles. Its swing-out dual-head design provides unobstructed loading space for long workpieces, while 550mm blades and CNC-controlled positioning deliver repeatable ±0.1mm accuracy. Engineered for window, door, and façade manufacturers who need fast setup, clean cuts, and continuous production.
Address
Zone B, Rural Revitalization Industrial Park, Xuanzhangtun Town, Qihe County, Dezhou City, Shandong Province, China
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