DTII Belt Conveyor V Type Idler for Mining Machinery

DTII Belt Conveyor V Type Idler for Mining Machinery

The DTII Belt Conveyor V Type Idler is a specialized component in the DTII conveyor system, an upgraded version of the TD75 standard, widely used in mining, coal, ports, and other heavy industries. These idlers feature two rollers arranged in a V-shaped configuration to support the return side (underside) of the conveyor belt, keeping it aligned and preventing sagging.

The V shape enhances belt centering, reduces material buildup, and minimizes wear, making it ideal for long-distance or heavy-duty conveyors. Built to withstand tough conditions, these idlers ensure smooth operation and lower maintenance costs. This page explains what V type idlers 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 V Type Idler for Mining Machinery Dimensions:

Explanation: The fasteners connected to the intermediate frame are included in this assembly drawing.Unit: mm

Belt width B

Roller

E

A

H

H1

H2

P

Q

d

Drawing No

D

L

Drawing No

Bearing

800

89

465

DTⅡGP1105

4G204

1142

1090

100

100

328

145

90

M12

DTⅡ03C2511

108

DTⅡGP2105

338

DTⅡ03C2521

DTⅡGP2205

4G205

DTⅡ03C2522

DTⅡGP2305

4G305

DTⅡ03C2523

1000

600

DTⅡGP2207

4G205

1342

1290

110

371

150

M16

DTⅡ04C2522

DTⅡGP2307

4G305

DTⅡ04C2523

133

DTⅡGP3207

4G205

384

DTⅡ04C2532

DTⅡGP3307

4G305

DTⅡ04C2533

1200

108

700

DTⅡGP2208

4G205

1592

1540

120

401

DTⅡ05C2522

DTⅡGP2308

4G305

DTⅡ05C2523

133

DTⅡGP3208

4G205

414

DTⅡ05C2532

DTⅡGP3308

4G305

DTⅡ05C2533

159

DTⅡGP4208

4G205

120

447

DTⅡ05C2542

DTⅡGP4308

4G305

DTⅡ05C2543

1400

108

800

DTⅡGP2310

4G305

1800

1740

130

100

420

DTⅡ06C2523

DTⅡGP2410

4G306

DTⅡ06C2524

133

DTⅡGP3310

4G305

433

DTⅡ06C2533

DTⅡGP3410

4G306

DTⅡ06C2534

159

DTⅡGP4310

4G305

120

466

DTⅡ06C2543

DTⅡGP4410

4G306

DTⅡ06C2544

DTII Belt Conveyor V Type Idler for Mining Machinery Features:

The DTII V Type Idler is designed to support and align the return side of the conveyor belt, ensuring stability and smooth operation in rugged mining environments. Here’s what it offers:

1. V-Shaped Roller Design

   • Features two rollers angled in a V configuration (typically 10° to 20°) to cradle the return belt, enhancing centering and preventing drift.

   • Reduces material buildup on the belt by allowing loose particles to fall off the sides.

2. Durable Materials

   • Roller tubes made of Q235 steel (equivalent to SS400/JIS G3101/ASTM A36) for strength under tension.

   • Shafts crafted from 45# steel (equivalent to DIN C45/JIS S45C/ASTM A1045) for precision and durability.

   • Optional HDPE or nylon coatings for reduced weight and enhanced durability.

3. High-Quality Bearings

   • Equipped with deep groove ball bearings (6204, 6205, 6305, etc., with C3 clearance, 2RZ/2Z seals) for smooth rotation and long life.

   • Triple labyrinth seals protect against dust, dirt, and moisture, ideal for mining conditions.

4. Low Noise and Vibration

   • Precision manufacturing and balance testing ensure quiet operation and minimal vibration.

   • Reduces wear on the belt and conveyor frame, extending system lifespan.

5. Corrosion Resistance

   • Options for zinc plating, baking paint, or epoxy coatings to resist rust in harsh environments like coastal ports.

   • Rubber or high-polymer coatings available for added durability in abrasive conditions.

6. Customizable Design

   • Diameters from 63.5mm to 219mm, lengths from 100mm to 3000mm, fitting belts 400mm to 2400mm wide.

   • Customizable V angles (10°, 15°, 20°) and frame designs to match specific conveyor layouts.

7. Standards Compliance

   • Meets DTII, DTII(A), CEMA (B, C, D, E), JIS, and ISO 9001:2015 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 V Type Idler Applications:

The DTII Upper Parallel Idler is used on the carrying side of conveyors where the belt needs to remain flat, such as near loading or discharge points, or in short conveyors. It’s ideal for these industries:

1. Mining

   • Supports belts carrying coal, iron ore, copper, or bauxite in underground or open-pit mines.

   • Suits flat sections of long conveyors, like a 4 km system in Shandong, ensuring stable material transport.

2. Metallurgy

   • Supports belts handling raw or processed metals in smelting plants.

   • Corrosion-resistant coatings protect against abrasive or high-temperature materials.

3. Ports and Terminals

   • Supports belts during loading/unloading of coal, grain, or aggregates.

   • Rust-resistant options are perfect for salty coastal environments.

4. Construction

   • Supports belts carrying gravel, sand, or aggregates on job sites.

   • Works with mobile or fixed conveyors for versatile setups.

5. Power Plants

   • Supports belts handling coal or ash at loading or discharge points.

   • Built for dusty, high-load conditions.

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					2186	2733	3444	4373	4920	5465	6122
1800					2795	3494	4403	5591	6291	6989	7829	9083
2000					3470	4338	5466	6941	7808	8676	9717	11277
2200							6843	8690	9776	10863	12166	14120
2400							8289	10526	11842	13158	14737	17104

Note:1. The conveying capacity in the table is calculated based on horizontal transportation, with a dynamic stacking angle of 20° and a roller groove angle of 35°.2. The belt speeds of 4.5m/s and 5.6m/s in the table are non-standard values and are generally not recommended for use.

Installation Guidelines:

Installing DTII V Type Idlers is straightforward with these steps:

1. Verify Specifications

   • Ensure the idler’s diameter, length, V angle (10°, 15°, 20°), and frame design match your conveyor’s belt and return side requirements.

   • Confirm the frame can support the idler’s weight and belt tension.

2. Position the Idlers

   • Install on the return side of the conveyor, typically spaced 6-10 feet apart based on belt width and tension.

   • Use V-shaped frames to secure the angled rollers, ensuring proper belt cradling.

3. Align the Idlers

   • Set idlers perpendicular to the belt to ensure proper alignment and support.

   • Use a laser level or string line to align the frame with adjacent idlers for consistent tracking.

4. Inspect Bearings and Seals

   • Verify bearings are lubricated with lithium soap grease and triple labyrinth seals are intact.

   • Avoid disturbing seals to maintain dust and water resistance.

5. Adjust Belt Tension

   • Set tension to keep the return belt taut without overloading the idlers. Use:[ T = \frac{P_p \cdot 1000}{v} ] where (T) is tension (Newtons), (P_p) is power (kilowatts), and (v) is belt speed (meters/second).

6. Test the System

   • Run the conveyor at low speed with no load to check idler performance, belt alignment, and V-angle effectiveness.

   • Adjust the frame or roller position if the belt drifts or sags.

Installation Tips

• Use trained technicians to meet safety and industry standards.

• Document installation details for maintenance records.

• Contact us for expert setup assistance.

Maintenance Tips

Regular care keeps DTII V Type Idlers performing well:

• Inspect Regularly: Check rollers, bearings, and frames every 3-6 months for wear or damage.

• Lubricate Bearings: Apply lithium soap grease every 6 months to ensure smooth rotation.

• Clean Rollers: Use belt scrapers to remove material buildup, especially in sticky conditions.

• Check Alignment: Verify the V-shaped rollers maintain proper belt centering.

• Use OEM Parts: Replace with DTII-compliant parts to maintain performance.

• Avoid Damage: Do not strike the idler tube with heavy objects to prevent damage to bearings or seals.

Customer Feedback:

Here’s what users of DTII V Type Idlers say:

1. Australian Iron