Wholesale Customized Carbon Steel Belt Conveyor Carrier Roller for Coal Mining

Product Description

Product Description

BASIC INFORMATION OF CONVEYOR ROLLER

The conveyor roller is the key part of industrial belt conveyor applied to the industries such as mining, ports, coal, steel, power, and construction materials etc. It is featured with low radial run-out, low rotational resistance, and high wear resistance. The fully automated conveyor roller production line fully demonstrates the intelligence of production from raw material delivery to finished product off-line.

Product Trademark	Risbon
Roller Diameter	φ89-φ219
Roller Length	250mm-2200mm
Roller Pipe	Q235 carbon steel, high precision straight seam welded pipewith state-of roundness and straightness to ensure well-balanced rotation.
Shaft	Q235 carbon steel, made of cold-drawn bright round steel, which is superior in corrosion resistance and stiffness.We have strict control over tolerance of shaft dimension and surface quality.The service lifespan can be well secured and proloned.
Bearing	C4 large clearance and double-sided sealing,which can effectively compensate for temperature rise during operation
Bearing Brands	Havalo, SKF, NSK, or as per your needs
Seals	composite sealing structure of non-contact labyrinth and contact lip, water-proof and dust-proof
Bearing Seat	be made of isotropic and ductile special strip steel, processed and formed through a unique seven-step stamping process, with high accuracy, light weight, certain elasticity and good stress state.
Color	black, red, blue, yellow available , or according to your requirement.black, red, blue, yellow available , or according to your requirement.

CONVEYOR ROLLER  EXHIBITION HALL 

TECHNICAL SPECIFICATIONS & PARAMETERS

ORDINARY ROLLER

Ordinary Roller Parameters
Standard Diameter (mm)	Length Range (mm)	Bearing Type	Roller Pipe Wall Thickness (mm)
89	250-2200mm	204 ,205	3.5
102	250-2200mm	204,205,305	3.5
108	250-2200mm	204,205,305,306	3.5
114	250-2200mm	205,305,306	3.5
127	250-2200mm	205,305,306	3.5
133	250-2200mm	205,305,306,307	3.5
140	250-2200mm	205,305,306,307	4.0
152	250-2200mm	205,305,306,307,308	4.0
159	250-2200mm	305,306,307,308	4.0
165	250-2200mm	305,306,307,308	4.5
177.8	250-2200mm	305,306,307,308,309	4.5
190.7	250-2200mm	306,307,308,309	4.5
194	250-2200mm	306,307,308,309	4.5
219	250-2200mm	308,309,310	4.5

CONVEYOR ROLLER FULLY AUTOMATIC PRODUCTION LINE

It can automatically cut and bore tubes, press fit bearing seats and bearings, weld, paint, spray paint, and package, achieving "no material falling to the ground and forming in one line". Automated production has significantly improved product precision, quality, and work efficiency.

CONVEYOR ROLLER PROCESS FLOW

The production cutting process adopts the mode of "Fixed Work-piece, Rotating Tool, and Radial Servo Feed", with a length error of ≤0.3mm and a cutting surface roughness of Ra6.3. After cutting, the robot precisely grasps the work-piece. The automatic boring process adopts the "simultaneous machining of the internal stop edges at both ends of the roller pipe body and the internal and external chamfering process", achieving a stop edge diameter accuracy of IT8 level, a roughness of Ra6.3, and a spacing error of ≤0.1mm. A dedicated device removes residual iron chips to ensure the cleanliness of the tube body.
The bearing seat is press-fitted using servo press-fitting technology, equipped with a dual-directional determination mechanism for displacement and pressure. The coaxiality error of the press-fitting spindle is ≤0.1mm, and the assembly pass rate is as high as over 99.9%.
The six-axis arc welding robot performs high-speed welding, while the automatic torch cleaning and wire cutting system regularly cleans the torch, sprays silicone oil, cuts the wire, and forms the weld seam. The robot transfers the work-piece to the next process, ensuring seamless connection in the production line and enhancing efficiency.
The roller shaft is precisely cut by an axle cutting machine, with a cutting length error of ±0.2mm and a surface roughness of Ra1.6μm.
The rotating speed for milling flat main shaft ranges from 0 to 3000rpm, enabling precise milling of shaft head slot flats, through flats, and drilling of radial holes. Hydraulic clamping ensures stable machining. The conveyor roller table transports the shaft material to the automatic storage rack, avoiding process congestion.

The double-ended CNC lathe, featuring a dual-spindle head and an independent dual-tool post structure, boasts a spindle speed range of 0-3000rpm. It is capable of performing tasks such as cutting circlip grooves, chamfering, deburring, and machining center holes. The external cylindrical tolerance at the shaft assembly reaches IT6 level, with a surface roughness of Ra1.6μm, and the coaxiality between both ends is maintained within 0.03mm.

After the roller body completes the shaft insertion, the servo press-fitting equipment press-fits the bearing to ensure precise and secure assembly. The sealing components are press-fitted according to set parameters to enhance sealing performance and prolong service life. The three-performance testing machine detects the rotational resistance, external circular run-out (≤0.3mm±0.1mm), and axial float of the roller. When the data exceeds the threshold, an automatic audible and visual alarm is triggered, and non-conforming products are sorted and placed in the rework area. Qualified rollers are packaged by a robot.
From the roller tube body cutting, boring and welding, to the roller shaft cutting, flattening and turning, and then to the roller assembly, inspection and packaging, the production line operates in an orderly manner , achieving fully automated production throughout the entire process.

CONVEYOR ROLLER FINISHED PRODUCTS SHOW

APPLICATION INDUSTRIES

CONVEYORS EPC/BOT CONTRACTING CAPABILITY 

VARIOUS CONVEYOR PARTS SUPPLY

Company Profile

COMPANY INTRODUCTION

Established in 1955, Shandong Mining Machinery Group Co., Ltd. (the "Company" ) owns 21 holding companies including Shandong Mining Machinery Equipment Manufacturing Co., Ltd, and was listed on Shenzhen Stock Exchange (stock code: SZ002526) in December 17, 2010. By the end of 2022, the Company owns total assets of RMB 4.3 billion, floorage of more than 2,000 acres (approximately 133 hectares) and over 2,000 employees.
As one of the key manufacturers of intelligent conveying systems (belt conveyor) in China, Shandong Mining Machinery Group Co., Ltd. is in the leading position in terms of scale, market share and product technical level. We have standardized and serialized various types of belt conveyors (with belt width range 600-2400), such as General series, DTII, DTI I (A) series, Overland Conveyor, Inclined Conveyor with Large Inclination Angle, Turning Conveyor, Bidirectional Conveyor, Pipe Conveyor, etc. The bulk conveyors now register total installed power of 8,000KW, conveying capacity of 11,500t/h, inclination from -28 to + 33 degree, belt width of 2,400mm, maximum speed of 6.3 m/s, and maximum conveying distance per unit of 12.6 km.
The company has complete research and development, design, test, detection, and measurement capabilities, and has complete manufacturing capabilities for intelligent conveying equipment, such as casting, forging, heat treatment, electroplating, welding, machining, surface treatment, automatic spraying and assembly. It has qualifications for specialized contracting of foundation engineering and steel structure engineering, general contracting of electromechanical engineering construction, intelligent loT cloud platform, intelligent control system software VI.0 for bulk material conveying, and general contracting capability of EPC, BOT and BT operation and maintenance of intelligent bulk material conveying system engineering.

The Technology R&D Center has more than 100 professional technicians and manages several research institutions, including the Overland Conveyor, Pipe Conveyor, General Conveyor, Intelligent Control, Intelligent Operations, Process Design, New Product R&D, Civil Steel Structure Engineering, etc. There are 8 professor engineers, 50 senior engineers, 20 mechanical engineers, 12 steel structure engineers, 11 automation engineers and 16 process engineers, among them, more than half of technicians have postgraduate degree.
The Company has been certified for the 1509001:2015 standard quality management system, environmental management system, occupational health and safety management system, National "High-Tech Enterprise" and Shandong Coal Machinery Engineering Technology Research Center. It has been titled a National Excellent Enterprise in the Coal Machinery Industry, Double Top-10 Enterprise in the Coal Machinery Industry, AAA-grade Credit Enterprise of the China Coal Industry Association, and listed as a "China Potential Enterprise" by Forbes magazine for five consecutive years.

CERTIFICATES

DOMESTIC & OVERSEAS EXHIBITIONS