DTII Belt Conveyor Inversed V Type Idler for Mining Machinery

DTII Belt Conveyor Inversed V Type Idler for Mining Machinery

The DTII Belt Conveyor Inversed V Type Idler is a specialized component in the DTII conveyor system, an advanced version of the TD75 standard, widely used in mining, coal, ports, and other heavy industries. These idlers feature two rollers arranged in an inversed V-shaped configuration (typically at 5°, 10°, or 15° angles) on the return side (underside) of the conveyor to support and align the empty belt after unloading.

The inversed V design trains the return belt, ensuring proper tracking and preventing misalignment, especially under high belt tensions or when carrying heavy loads. Built to endure harsh mining conditions, these idlers reduce belt wear, minimize maintenance, and enhance conveyor efficiency. This page explains what inversed 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 Inversed 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				A	E	P	Q	d	Drawing No
	D	L	Drawing No	Bearing
1000	108	380	DTⅡGP2304	4G305	1290	1350	196	90	M16	DTⅡ04C2923
	133		DTⅡGP3304							DTⅡ04C2933
1200	108	465	DTⅡGP2305		1540	1600				DTⅡ05C2923
	133		DTⅡGP3405	4G306						DTⅡ05C2934
	159		DTⅡGP4405							DTⅡ05C2944
1400	108	530	DTⅡGP2406		1740	1800				DTⅡ06C2924
	133		DTⅡGP3406							DTⅡ06C2934
	159		DTⅡGP4406							DTⅡ06C2944

DTII Belt Conveyor Inversed V Type Idler for Mining Machinery Features:

The DTII Inversed V Type Idler is designed to support and align the return side of the conveyor belt, ensuring stable tracking and minimizing wear in rugged mining environments. Here’s what it offers:

1. Inversed V-Shaped Roller Design

   • Features two rollers angled in an inversed V configuration (5°, 10°, or 15°) to train the return belt, ensuring proper alignment under high tension or heavy loads.

   • Reduces belt drift and prevents edge damage, improving system reliability.

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 stainless steel, HDPE, or rubber coatings for enhanced corrosion and wear resistance.

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 environments like coastal ports.

   • Stainless steel or high-polymer coatings available for added durability in abrasive or chemical conditions.

6. Customizable Design

   • Roller diameters from 76mm to 219mm, lengths from 150mm to 3000mm, fitting belts 400mm to 2400mm wide.

   • Customizable V angles (5°, 10°, 15°) and frame designs to match specific conveyor layouts and tension requirements.

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 Inversed V Type Idler Applications:

The DTII Inversed V Type Idler is used on the return side of conveyors to support and align the empty belt after unloading, particularly in high-tension or heavy-duty systems. It’s ideal for these industries:

1. Mining

   • Supports and aligns return belts in conveyors moving coal, iron ore, copper, or bauxite in underground or open-pit mines.

   • Suits long-distance systems, like a 6 km conveyor in Shanxi, ensuring stable belt tracking.

2. Metallurgy

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

   • Corrosion-resistant coatings withstand abrasive or high-temperature environments.

3. Ports and Terminals

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

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

4. Construction

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

   • Works with mobile or fixed conveyors for versatile setups.

5. Power Plants

   • Supports return belts handling coal or ash in fuel or waste systems.

   • Built for dusty, high-tension 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 Inversed V Type Idlers is straightforward with these steps:

1. Verify Specifications

   • Ensure the idler’s diameter, length, V angle (5°, 10°, 15°), 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 inversed V-shaped frames to secure the angled rollers, ensuring proper belt cradling.

3. Align the Idlers

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

   • 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 shows uneven wear.

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 Inversed 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: Remove any material buildup to maintain alignment performance.

• 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 Inversed V Type Idlers say:

1. Australian Gold Mine

   “The V-shaped return rollers handle high tension like a champ. Our belts last longer, and downtime is reduced.” – Emma Wilson, Site Engineer

2. South African Port Terminal

   “The corrosion-resistant coatings are perfect for our coastal setup. These idlers need minimal upkeep.” – Sipho Mthembu, Logistics Manager

3. Peruvian Copper Mine

   “Our conveyor’s uptime is up 25% with these idlers. They’re reliable and keep the belt on track.” – Juan Lopez, Maintenance Supervisor

These testimonials show [Your Company Name] delivers dependable idlers that customers trust.

Related Questions (FAQs):

Got questions? Here are clear answers with keywords to help you find us:

1. What’s a DTII Inversed V Type Idler?

A V-shaped roller set used on the return side of mining conveyors to support and align the empty belt, preventing misalignment.

2. How does it align the return belt?

Two rollers angled in an inversed V configuration (5°, 10°, or 15°) cradle the belt, guiding it to stay centered under tension.

3. What’s it made of?

Q235 steel for roller tubes, 45# steel for shafts, with optional stainless steel, HDPE, or rubber coatings for durability.

4. How often should I maintain it?

Inspect every 3-6 months, lubricate bearings, clean rollers, and check alignment. Don’t tamper with seals.

5. Can it be customized?

Yes, we offer various sizes, V angles, and coatings to fit your conveyor.

6. Where’s it used?

Mining, metallurgy, ports, construction, and power plants for handling bulk materials like coal or ore.

7. How does it improve my conveyor?

It ensures stable belt alignment, reduces wear, and cuts maintenance for better efficiency and safety.