Shandong Qianlin Metal Materials Co., Ltd.A highly specialized honing tube manufacturing, processing, and sales enterprise. We produce and sell a variety of honing tube specifications, including honing tubes, large-diameter honing tubes, and small-diameter honing tubes, all adhering to strict quality standards. As one of the largest honing tube production and processing trading companies in the country, we maintain an inventory of over 1000 tons, leading in both inventory and sales volume among similar enterprises. Our sales region for honing tubes covers all provinces and regions in China except Hainan and Tibet. By continuously enhancing customer competitiveness through service, we have also earned market acclaim for ourselves. Our motto is: A promise is a promise, and a broken promise is worth a thousand.
Qianlin Company owns 6 honing tube machine units, capable of processing and producing honing tubes (modeling tubes, cylinder tubes) in sizes ranging from 12 to 1100. The honing tubes (modeling tubes, cylinder tubes) produced by our company can achieve a surface roughness of approximately Ra≤0.08μm, corrected roundness and ellipticity of ≤0.01mm, improved surface hardness, eliminating stress deformation, hardness increase to HV≥4°, residual stress layer after machining, fatigue strength improvement of 30%, improved fit quality, reduced wear, and extended service life of parts.
Honing tubes, model aircraft tubes, hydraulic cylinder tubes, pressure and pneumatic cylinder barrel dimensions and precision
Manufacturing Method, Cylinder Bore Diameter mm, Length m, Straightness mm/m, ID Dimension Accuracy, Wall Thickness Tolerance, Inner Bore Roughness μm
Cold drawn 40-320 ≤ 12M 0.2-0.5 H8-H10 ± 5% 0.8-1.6
Cold Rolled 12-100 ≥ 12M 0.2-0.5 H8-H10 ± 5% 0.8-1.2
Cold Drawn - Ground 40-500mm 8M 0.2-0.3mm H7-H9 ±5% 0.2-0.8mm
Cold Drawn & Rolled - 40-400mm, 7M, 0.2-0.3mm H8-H9, ±5%, 0.2-0.4mm
Deep Hole Boring - Honing 320-1100 8M 0.2-0.3 H7-H9 ± 8% 0.2-0.8
Deep Hole Boring - Rolling 320-6007M 0.2-0.3 H8-H9 ±8% 0.2-0.4
Recently installed 3 precision rolling units, capable of producing bright seamless steel tubes with outer diameters of 10-202mm and wall thicknesses of 1-18mm. The cold-rolled bright tubes produced by Qianlin Steel Tube in Liaocheng City feature smooth surfaces, even wall thicknesses, no oxidation layer, and high quality. They are used in industries such as automobiles, motorcycles, electricity, petrochemicals, ships, aerospace, bearings, pneumatic components, hydraulic cylinders, boiler equipment, medical equipment, and fitness equipment. Customized non-standard precision drawn tubes are available according to customer requirements. Materials include 20#, 35#, 45#, 40Cr, 16Mn, etc. Customized non-standard precision drawn tubes are also available according to customer needs. Honing tubes, cold-drawn honing tubes, large-diameter honing tubes, small-diameter honing tubes
We offer pre-ordering of non-standard and special steel pipes as per customer requirements. We operate 24/7 without breaks on holidays, handling transportation via rail, road, and sea, offering discounts for bulk orders and direct factory shipment. Building on today's reputation and quality of service will bring a vast market return tomorrow. Throughout every business transaction, regardless of the quantity needed, we strive to win long-term customers with strict, honest, practical, meticulous, and attentive service.