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Yantai Yunde Intelligent Technology Co., Ltd. has only 30 years of production experience, has served more than 300 domestic and foreign customers, and has produced more than 2,000 machines.
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Drawing Machine
- Combined Drawing Machine
Combined Drawing Machine
A combined drawing machine is an automated metal finishing system that integrates multiple cold-working processes. Its primary function is to process coiled metal raw materials in a single pass, transforming them into rods, tubes, and profiles characterized by high precision, superior surface finish, and exceptional straightness.
Uncoiling and Pre-straightening: The coiled raw material is unwound and preliminarily straightened to relieve internal stresses.
Continuous Drawing and Forming: Through a multi-die continuous drawing process, the material's cross-section is reduced while its length is elongated, achieving single-pass forming.
Precision Straightening: A secondary, high-precision straightening step is performed post-drawing to ensure straightness (typically <0.30 mm/m).
Cut-to-Length: The material is automatically cut to the required length with high precision.
Surface Finishing: Polishing and/or burnishing operations are conducted to enhance surface finish (Ra <1.6 μm).
Finished Product Collection: Automatic stacking and bundling complete the full automation of the entire process workflow.
Uncoiling and Pre-straightening: The coiled raw material is unwound and preliminarily straightened to relieve internal stresses.
Continuous Drawing and Forming: Through a multi-die continuous drawing process, the material's cross-section is reduced while its length is elongated, achieving single-pass forming.
Precision Straightening: A secondary, high-precision straightening step is performed post-drawing to ensure straightness (typically <0.30 mm/m).
Cut-to-Length: The material is automatically cut to the required length with high precision.
Surface Finishing: Polishing and/or burnishing operations are conducted to enhance surface finish (Ra <1.6 μm).
Finished Product Collection: Automatic stacking and bundling complete the full automation of the entire process workflow.
OUR PRODUCTS
Best-selling Products
Coil To Bar Peeling&Straightening Line
Stainless steel wire rod is decoiled and pre-straightened, then peeled using a centerless lathe and cut to a precise length. Following a final precision straightening pass through a two-roll straightener, the resulting product is a high-precision stainless steel straight bar.
Peeling machine(centerless lathe)
The peeling machine (centerless lathe) unit is a product independently developed after comparing and contrasting the advantages of similar foreign products and combining them with the production characteristics of domestic enterprises, resulting in a simplified and optimized design.
Coil to coil production line
Coil to coil production line is a serial of the machines includes payoff & straightening machine, peeling machine, clamping mechanism, pre-bending device, recoiler machine etc. through above machines, the black coil rod will be processed to bright coil rod with good surface quality
Straightening machine BS Series
A straightening machine is a device used to straighten metal profiles, bars, tubes, and wires. The straightening machine uses straightening rollers to compress the material, altering its straightness. Generally, there are two rows of straightening rollers, with varying numbers of rollers. There are also two-roller straightening machines, which rely on the angle change of two rollers (with a concave, hyperbolic shape) to straighten materials of different diameters.
Multi-Roll Steel Pipe Straightening Machine
It is a mechanical device used to straighten the curvature and ovality of steel pipes. It is used to straighten pipes made of high alloy, corrosion-resistant, heat-resistant, heat-resistant steel and alloy, iron-nickel, nickel and titanium alloys , so as to reduce longitudinal non-straightness and cross-sectional non-roundness.
Horizontal and vertical straightening machine
Release the handwheel of the multi-roll horizontal and vertical straightening machine to allow the wire coil to pass through the straightening rollers. Tighten the handwheel to the empirically determined position, start the feeding device, and perform repeated straightening trials. Then feed the wire coil to the vertical straightening rollers, following the same procedure as for horizontal straightening. Finally, feed the wire coil to the peeling machine's feeding device.
OUR LATEST
Our Latest Blog & News
When Does Bar Peeling Beat Industrial Surface Roughening?
Learn when bar peeling fits defect removal and when industrial surface roughening is the better surface-treatment route.
Steel Bar Straightening Problems and Practical Fixes
Resolve steel bar straightening faults by tracing residual bow, surface marks and end diameter changes in BS series two-roll machines.
How Automated Straightening Lines Cut Labor Costs
Learn how automated straightening lines reduce labor cost by stabilizing feed, settings, inspection, and material handoffs.
How to Select Cutting Tools for Steel Bar Peeling Machines?
Choose peeling machine cutting tools by matching steel condition, insert grade, geometry and cutting depth, then compare tool life in a controlled trial.
Bar Straightening for Precision Component Manufacturing
See how BS two-roll bar straightening supports precision machining through better stock geometry, clear accuracy criteria and material-specific trials.
How to Reduce Material Waste in Steel Bar Peeling
Reduce steel bar peeling waste with trial cuts, measured allowances, model-range checks, and repeatable output control.
SERVICES
Services
Export Package
We have rich experience in export packaging with professional packaging and professional packing staff. Multilayer packaging is adopted with critical area wrapped with moisture proof and shock proof film, plywood box, or wood box and tray. Multiple reinforcement measures is applied to ensure the solid fixation of equipment on packing box and tray, and the stability of equipment in the container.
Aftersale service
1.Provide free warranty period of 12 months
2.Provide long term free technical support
3.The buyer’s can be trained in our factory for free.
4.Quick response within 24 hours
5.Provide overseas services such as installation instruction, equipment commissioning and operation training.
