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