BASIC INFORMATION OF CONVEYOR ROLLER
| Product Trademark |
SK |
| Roller Diameter |
φ89-φ219 |
| Roller Length |
250mm-2200mm |
| Roller Pipe |
Q235 carbon steel, high precision straight seam welded pipe with 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 |
lybarinth non-contact sealing structure |
| 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. |
TECHNICAL SPECIFICATIONS & PARAMETERS OF CONVEYOR 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 |
PRODUCTION ADVANTAGES
PRODUCTION PROCESS INTRODUCTION
1. Roller Body:
(1) The roller pipe adopts automatic cutting machine, with no deformation or chips when cutting the pipe body; The perpendicularity between the fracture and the pipe is high, and the parallelism between the two ends is high;
(2) The roller pipe adopts special boring machine, which can simultaneously bore both ends of the roller pipe where bearings are installed, with high coaxiality; complete the end face flatting and interior angle cutting in one go;
(3) Patented Technology of A Reducing Diameter Process: completely eliminates wear on the conveyor belt, greatly imporves the coaxiality of the idler, and effectively reduces the jumping and rotating resistance of the excircle.
4) Anti-rust Painting on the inner wall of the supporting roller: ensure good corrosion resistance.
2. Roller Shaft
Use a slot flat double end milling machine to synchronously process the slot flat at both ends, ensuring that the slot flat of the roller shaft is symmetrical.
3. Bearing:
1) domestic and foreign first-class brand roller bearings;
2) semi-automatic quantitative filling of low-temperature lithium based lubricating grease, eliminateing the need for further filling in the future, and has good cold resistance.
4. Sealing
The babyrinth seal structure is of non-contact type, and durable and has less rotation-resistance and long life-span as to be of optimum structure, particularly for a long-distance and large capacity conveyor for bulk material. It is approved from the testing of national authoritative organization that Seal employed is of dustproof and waterproof type, whose performance proved to be satisfactory and has by a long way exceeded the GB and JIS standard after our repeated research and development.Factory high quality greased full for life.
5. Product Assembly
Adopt automatic pressing, ensuring the overall assembly accuracy of the supporting rollers.
6. Welding:
Adopt fully automatic mixed gas shielded welding, with good welding seam quality and high welding accuracy; equipped with dust removal devices, which is safe, efficient, environmentally friendly and healthy.
7. Coating:
Adopt a dust-free sealed and environmentally friendly automatic coating line, realizing the automatic loading & unloading, coating, palletizing, packaging, and the harmless treatment of exhaust gas, making it the first environmentally friendly roller coating line in China to automatically load and unload parts.
QUALITY CONTROL MEATURES
1. STANDARDS
All performance indicators meet or exceed the requirements of MT821 "Technical Conditions for Belt Conveyors Used in Coal Mines" and GB/T10595 "Technical Conditions for Belt Conveyors".
2. TESTING
Utilize multiple roller testing equipment to inspect the radial runout, rotational resistance, axial load, waterproof, dust-proof, and drop performance of the rollers, ensuring their high performance.
ROLLER WORKSHOP AND PACKAGING
COMPANY ROLLER EXHIBITION HALL
APPLICATION INDUSTRIES
CONVEYORS EPC/BOT CONTRACTING CAPABILITY
VARIOUS CONVEYOR SPARE PARTS SUPPLY
COAL MINING MACHINERY & SPARE PARTS SUPPLY
AERIAL VIEW OF OUR FACTORY
COMPANY INTRODUCTION
- Established in 1955, Shandong Mining Machinery Group Co., Ltd. (the "Company" ) owns 21 holding companies 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, more than 2,000 Acres of floor area of factory, 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. 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.
- To date, the center has 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 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.
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