ABOUT US
Yantai Yuande 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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Yantai Yuande Intelligent Technology Co., Ltd.
OUR PRODUCTS
Best-selling products
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.
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.
our service
service
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.
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.
Industry case
case
PM40S CNC PEELING MACHINE(CENTERLESS LATHE)
A PM40S high-speed CNC bar peeling machine (centerless lathe) purchased by a major Indian bright steel manufacturer has successfully completed its trial run.
BS100 STRAIGHTENING MACHINE
A BS100 frame-type straightening machine for a Chinese steel plant customer has successfully completed its trial run and is now in operation.
Coil to coil(bar) peeling production line
A wire rod peeling production line for a customer in Shaanxi province has successfully completed its trial run and is now in operation.
Industry Solutions
solution
Rough straightening +peeling+ precision straightening
The black bars are pre-straightened using a rough straightening machine with hydraulic protection, then processed by a peeling machine to obtain bright bars, and finally processed by a precision straightening machine to achieve higher straightness and surface finish.
Uncoil+peeling+cutting off+straightening production line
The wire rod is unwound using an uncoiler or payoff reel, then the scale is removed by a peeling machine. The wire is then cut to the required length using a cutting machine, and finally, a straightening machine is used to achieve better straightness and surface finish.
ABOUT COMPANY
Yunde only produces high-quality products. Reputation first, attentive service.
Yantai Yunde Intelligent Technology Co., Ltd. is a company specializing in the production of centerless lathes (peeling machines), straightening machines, polishing machines, and other round steel finishing equipment. Our products are used for round steel peeling, precision straightening, and polishing, and are dedicated equipment for the finishing and processing of new-generation slender shafts, bright steel (bright materials), bars, and steel pipes.
The centerless lathes and straightening and polishing machines produced by our company feature simple operation, low noise, and high processing speed. The combination of centerless lathes and straightening and polishing machines forms an automatic production line for peeling and precision straightening of long round metal parts such as slender shafts, bars, rods, discs, and steel pipes, producing high-precision bright metal materials. This is an upgraded alternative to traditional cold drawing and pickling processes, as well as the combination of conventional lathe turning and centerless (rough) grinding.
The centerless lathes and straightening and polishing machines produced by our company feature simple operation, low noise, and high processing speed. The combination of centerless lathes and straightening and polishing machines forms an automatic production line for peeling and precision straightening of long round metal parts such as slender shafts, bars, rods, discs, and steel pipes, producing high-precision bright metal materials. This is an upgraded alternative to traditional cold drawing and pickling processes, as well as the combination of conventional lathe turning and centerless (rough) grinding.
The company consistently adheres to the work philosophy of "integrity and quality"; we strive to meet the diverse needs of our customers with focused technology, excellent quality, timely delivery, and superior service. The company has a dedicated R&D department and after-sales service team, providing professional solutions based on customer needs and continuously introducing more advanced new products through innovative technologies. In the future, we will, as always, uphold the corporate tenet of "reputation first, attentive service," and establish a new benchmark in the mechanical processing industry.
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OUR BLOG
BLOG
A centerless lathe is a high-precision machining equipment, and its horizontal position directly affects machining accuracy, tool life, and equipment stability.
Centerless lathes (or peeling machines) are high-precision machining equipment, and their horizontal alignment directly affects machining accuracy, tool life, and equipment stability. After installation, scientific calibration is required to ensure the bed is in a horizontal position. The specific steps are as follows:
1.Prepare calibration tools
High-precision spirit levels (accuracy of at least 0.02 mm/m is recommended), shims (adjustable mechanical shims or rubber damping pads), wrenches, and adjusting screws are required. The spirit level must be calibrated to ensure reliable measurement data.
2.Determine the calibration reference plane
Using the guide surface of the centerless lathe bed as the reference, prioritize calibrating the horizontal alignment in both the longitudinal (along the machining direction) and transverse (perpendicular to the machining direction) directions. If the bed is a segmented structure, calibrate each segment separately and ensure overall consistency.
3.Longitudinal horizontal calibration
Place the spirit level on the longitudinal guide rail of the bed and move it along the machining direction, recording the readings at various positions.
Adjust the height of the centerless lathe’s leveling bolts or shims to ensure that the longitudinal horizontal deviation does not exceed 0.05 mm/m (refer to the equipment manual for specific standards).
When adjusting, tighten the bolts symmetrically to avoid bed distortion caused by uneven force on one side.
4.Transverse horizontal calibration
Rotate the spirit level 90° and place it on the transverse guide rail of the bed, repeating the measurement and adjustment steps.
Transverse horizontal alignment usually requires stricter tolerances (e.g., ≤0.03 mm/m), as tool vibration and workpiece feeding are more sensitive to transverse stability.
5.Re-inspection and securing
After the initial adjustment, multiple re-inspections and fine-tuning are required until the spirit level readings are stable at any position.
Tighten all leveling bolts and verify the horizontal alignment again to prevent deviations caused by loose bolts.
If the ambient temperature changes significantly, wait until the centerless lathe’s temperature stabilizes (usually 2-4 hours) before confirming the alignment.
6.Handling special circumstances
If the ground is uneven, adjustable shims or damping devices should be installed between the foundation and the centerless lathe, and secured with secondary grouting to ensure long-term stability.
