Discover Raydafon Group's DTII Belt Conveyor Roller for mining machinery, a durable solution designed to enhance operational efficiency in harsh mining environments. With high-strength materials and precision engineering, it reduces downtime and maintenance needs, ideal for mining operators seeking reliable performance. This roller ensures smooth, continuous conveying, boosting productivity and safety. Compared to standard options, its advanced design offers superior durability and longevity. Experience reliable mining operations with Raydafon Group's trusted expertise—available now for optimized performance.
The DTII Belt Conveyor Roller is a critical component of the DTII conveyor system, an advanced evolution of the TD75 standard, widely used in mining, coal, ports, and other heavy industries. These rollers, also known as idlers, are positioned along the conveyor to support the belt and the material it carries, ensuring smooth, efficient, and reliable transportation. Available in various types—carrying rollers, return rollers, impact rollers, and self-aligning rollers—they serve specific functions like supporting the belt, absorbing material impact, or correcting misalignment.
Designed for durability in harsh mining environments, DTII rollers reduce belt wear, minimize downtime, and enhance conveyor performance. This page covers what DTII rollers do, where they’re used, how to install them, what users say, and answers common questions, all in plain language to help you decide if they’re right for your conveyor system.
DTII Belt Conveyor Roller for Mining Machinery Dimensions:
Unit: mm
D
d
Bearing model
L
b
h
f
Weight of rotating parts (kg)
Drawing No
89
20
4G204
200
14
6
14
2.08
DTⅡGP1101
250
2.15
DTⅡGP1102
315
2.58
DTⅡGP1103
465
3.87
DTⅡGP1105
600
4.78
DTⅡGP1107
750
5.79
DTⅡGP1109
950
7.15
DTⅡGP1111
25
4G205
18
8
17
7.23
DTⅡGP1211
108
20
4G204
315
14
6
14
3.46
DTⅡGP2103
465
4.7
DTⅡGP2105
950
8.71
DTⅡGP2111
25
4G205
315
18
8
17
3.53
DTⅡGP2203
380
4.07
DTⅡGP2204
465
4.77
DTⅡGP2205
600
5.89
DTⅡGP2207
700
6.72
DTⅡGP2208
950
8.74
DTⅡGP2211
1150
8.4
DTⅡGP2212
1400
10.03
DTⅡGP2213
4G305
380
4.19
DTⅡGP2304
465
4.89
DTⅡGP2305
530
5.43
DTⅡGP2306
600
6.01
DTⅡGP2307
700
6.84
DTⅡGP2308
800
7.67
DTⅡGP2310
950
8.91
DTⅡGP2311
1150
10.56
DTⅡGP2312
1400
12.76
DTⅡGP2313
1600
14.42
DTⅡGP2314
30
4G306
465
22
5.35
DTⅡGP2405
530
5.89
DTⅡGP2406
800
8.12
DTⅡGP2410
1400
13.08
DTⅡGP2413
1600
14.73
DTⅡGP2414
D
d
Bearing model
L
b
h
f
Weight of rotating parts (kg)
Drawing No
133
25
4G205
380
18
8
17
6.04
DTⅡGP3204
465
7.12
DTⅡGP3205
600
8.84
DTⅡGP3207
700
10.11
DTⅡGP3208
1150
15.80
DTⅡGP3212
1400
18.98
DTⅡGP3213
4G305
380
6.3
DTⅡGP3304
465
7.38
DTⅡGP3305
530
8.21
DTⅡGP3306
600
9.1
DTⅡGP3307
700
10.37
DTⅡGP3308
800
11.64
DTⅡGP3310
1150
16.09
DTⅡGP3312
1400
19.28
DTⅡGP3313
1600
21.83
DTⅡGP3314
30
4G306
465
22
8.13
DTⅡGP3405
530
8.96
DTⅡGP3406
800
12.4
DTⅡGP3410
1400
18.35
DTⅡGP3413
1600
20.9
DTⅡGP3414
159
25
4G205
465
18
9.46
DTⅡGP4205
700
13.45
DTⅡGP4208
1400
25.46
DTⅡGP4213
4G305
465
9.64
DTⅡGP4305
530
10.68
DTⅡGP4306
700
13.6
DTⅡGP4308
800
15.32
DTⅡGP4310
1400
25.82
DTⅡGP4313
1600
29.25
DTⅡGP4314
30
4G306
465
22
10.53
DTⅡGP4405
530
11.64
DTⅡGP4406
800
16.27
DTⅡGP4410
1400
26.56
DTⅡGP4413
1600
29.99
DTⅡGP4414
DTII Belt Conveyor Roller for Mining Machinery Features:
The DTII Conveyor Roller is designed to support, guide, and protect conveyor belts in mining operations, ensuring smooth material transport and minimal maintenance. Here’s what makes it stand out:
Multiple Roller Types
Carrying Rollers: Support the loaded belt, typically trough-shaped (20°, 35°, 45°) to handle bulk materials like coal or ore.
Return Rollers: Support the empty belt on the return side, preventing sagging and stretching.
Impact Rollers: Absorb shock at loading points with rubber rings or coatings to minimize belt damage.
Self-aligning Rollers: Pivot to correct belt misalignment, reducing edge wear.
Durable Materials
Roller tubes made of Q235 steel (equivalent to SS400/JIS G3101/ASTM A36) for strength under heavy loads.
Shafts crafted from 45# steel (equivalent to DIN C45/JIS S45C/ASTM A1045) for precision and durability.
Optional stainless steel, rubber, or HDPE coatings for corrosion and wear resistance in harsh environments.
High-Quality Bearings
Equipped with deep groove ball bearings (6204, 6205, 6305, etc., with C3 clearance, 2RZ/2Z seals) for smooth rotation and extended lifespan.
Triple labyrinth seals protect against dust, dirt, and moisture, ideal for mining conditions.
Low Noise and Vibration
Precision manufacturing and balance testing ensure quiet operation and minimal vibration.
Reduces wear on the belt and conveyor frame, prolonging system life.
Corrosion Resistance
Options for zinc plating, baking paint, or epoxy coatings to resist rust in environments like coastal ports.
Stainless steel or HDPE options for added durability in abrasive or chemical conditions.
Customizable Design
Roller diameters from 76mm to 219mm, lengths from 100mm to 3000mm, fitting belts 500mm to 2400mm wide.
Customizable trough angles, coatings, and frame designs to suit specific conveyor layouts.
Standards Compliance
Meets DTII, DTII(A), CEMA (B, C, D, E), JIS, and ISO 9001:2008 standards for quality and safety.
Tested for radial runout (≤0.5mm), axial displacement (≤1.2mm), and rotation resistance (≤3.5N) to ensure reliability.
DTII Belt Conveyor Roller Applications:
The DTII Conveyor Roller is used in various conveyor systems to support and guide belts, particularly in high-tension or long-distance setups. It’s ideal for these industries:
Mining
Supports belts carrying coal, iron ore, copper, or aggregates in underground or open-pit mines.
Impact rollers reduce belt damage at loading points; return rollers prevent sagging on long systems like a 10 km conveyor in Inner Mongolia.
Metallurgy
Supports belts handling raw or processed metals in smelting plants.
Corrosion-resistant coatings withstand abrasive or high-temperature environments.
Ports and Terminals
Supports belts during loading/unloading of coal, grain, or aggregates.
Rust-resistant coatings are ideal for salty coastal conditions.
Construction
Supports belts carrying gravel, sand, or aggregates on job sites.
Works with mobile or fixed conveyors for flexible setups.
Power Plants
Supports belts handling coal or ash in fuel or waste systems.
Designed for dusty, high-tension environments.
DTII Belt Conveyor:
Purpose and Scope of Use:
DTII、DTII(A) fixed belt conveyors. Their main parameters, transmission power, and tension calculation methods adopt ISO international standards, and are widely used in various industries.The material is transported by a single or multiple unit synthetic transportation system.This conveyor is suitable for working in temperatures ranging from -25°C to 40°C.
Product Features:
◆ Conveying materials is below 2.5t/m3◆ Can be divided into 500, 650, 800, 1000, 1200, 1400, 1600, 1800, 2000、2200, 2400◆ Can be divided into:0.8, 1.0, 1.25, 1.6, 2.0, 2.5, 3.15、4.0, (4.5), 5.0, (5.6), 6.5
Belt width (mm)
0.8
1.0
1.25
1.6
2.0
2.5
3.15
4
(4.5)
5.0
(5.6)
6.5
500
69
87
108
139
174
217
650
127
159
198
254
318
397
800
198
248
310
397
496
620
781
1000
324
405
507
648
811
1014
1278
1622
1200
593
742
951
1188
1486
1872
2377
2674
2971
1400
825
1032
1321
1652
2065
2602
3304
3718
4130
1600
218
Hot Tags: DTII Belt Conveyor Roller Supplier, Mining Machinery Conveyor Roller Manufacturer, Custom Conveyor Roller Wholesale
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