DTII Belt Conveyor Tape Roller for Mining Machinery

The DTII Belt Conveyor Taper Roller, also known as a conical or self-aligning roller, is a specialized component of the DTII conveyor system, an advanced evolution of the TD75 standard, widely used in mining, coal, cement, and other heavy industries. Positioned on the carrying or return side of the conveyor, taper rollers feature a conical shape that helps prevent belt deviation by guiding the belt back to its center, ensuring proper alignment.

These rollers are critical for maintaining conveyor stability, especially in high-tension or long-distance systems handling materials like coal, ore, or aggregates. Built to withstand harsh mining environments, DTII taper rollers reduce belt wear, minimize downtime, and enhance operational efficiency. This page explains what taper 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 Tape Roller for Mining Machinery Dimensions:

Unit: mm

Belt width B	D1×D2×L1	D3×L2×C	Bearing model	Applicable models
800	Ø89×Ø133×340	Ø25×374×18	4G205	DTⅡ03C1211    DTⅡ03C1222
1000	Ø108×Ø159×415	Ø25×449×18	4G305	DTⅡ04C1223    DTⅡ04C1233
1200	Ø108×Ø176×500	Ø30×534×22	4G306	DTⅡ05C1224    DTⅡ05C1234
	Ø133×Ø194×500	Ø30×534×22	4G306	DTⅡ05C1244
1400	Ø108×Ø176×550	Ø25×584×18	4G305	DTⅡ06C1223    DTⅡ06C1233
	Ø108×Ø176×550	Ø30×584×22	4G306	DTⅡ06C1224    DTⅡ06C1234
	Ø133×Ø194×550	Ø25×584×18	4G305	DTⅡ06C1243
	Ø133×Ø194×550	Ø30×584×22	4G306	DTⅡ06C1244

DTII Belt Conveyor Tape Roller for Mining Machinery Features:

The DTII Taper Roller is designed to support and align conveyor belts, preventing deviation and ensuring smooth, efficient operation in rugged mining environments. Here’s what makes it stand out:

1. Self-Aligning Conical Design

   • Features a tapered or conical shape that uses friction and the belt’s natural tension to guide it back to the center, preventing misalignment.

   • Reduces belt edge wear and damage caused by deviation, especially in long or high-speed conveyors.

2. 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 rubber, polyurethane, or HDPE coatings for corrosion and abrasion resistance in harsh environments.

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 lifespan.

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

4. Low Noise and Vibration

   • Precision manufacturing and balance testing minimize noise and vibration during operation.

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

5. Corrosion Resistance

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

   • Rubber or HDPE coatings provide additional durability in abrasive or corrosive conditions.

6. Customizable Design

   • Roller diameters from 89mm to 219mm, lengths from 150mm to 2500mm, fitting belts 500mm to 2400mm wide.

   • Customizable taper angles, coating types, and frame designs to suit specific conveyor setups and material loads.

7. 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 Tape Roller Applications:

The DTII Taper Roller is used on the carrying or return side of conveyors to support the belt and correct misalignment, making it ideal for handling heavy or sticky materials in various industries. It’s perfect for these applications:

1. Mining

   • Prevents belt deviation in systems transporting coal, iron ore, or copper in underground or open-pit mines.

   • Suits long-distance conveyors, like a 5 km system in Shanxi, ensuring stable belt tracking.

2. Cement Plants

   • Maintains belt alignment when handling sticky cement or clinker, reducing maintenance.

   • Corrosion-resistant coatings withstand abrasive environments.

3. Ports and Terminals

   • Ensures belt alignment during loading/unloading of coal, grain, or aggregates.

   • Rust-resistant coatings are ideal for salty coastal conditions.

4. Construction

   • Corrects belt deviation in systems carrying gravel, sand, or aggregates on job sites.

   • Works with mobile or fixed conveyors for flexible setups.

5. Power Plants

   • Maintains alignment in systems handling coal or ash, preventing spillage.

   • 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					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 Taper Rollers is straightforward with these steps:

1. Verify Specifications

   • Ensure the roller’s diameter, length, taper angle, and frame design match your conveyor’s belt and alignment requirements.

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

2. Position the Rollers

   • Install taper rollers on the carrying or return side, typically in pairs or sets, spaced 1-3 meters apart based on belt width and load.

   • Use sturdy frames to secure the rollers, ensuring they align with the belt’s trough angle (20°, 35°, or 45°).

3. Align the Rollers

   • Set rollers at a slight angle to the belt’s centerline to enable self-aligning action.

   • Use a laser level or string line to align rollers 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 belt taut without overloading the rollers. 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 roller performance, alignment correction, and belt tracking.

   • Adjust roller positions 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 installation support.

Maintenance Tips

Regular care keeps DTII Taper Rollers 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 material buildup to maintain alignment effectiveness.

• Check Alignment: Ensure rollers remain correctly angled to prevent belt drift.

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

• Avoid Damage: Do not strike rollers or frames with heavy objects to prevent damage to bearings or seals.

Customer Feedback:

Here’s what users of DTII Taper Rollers say:

1. Australian Iron Ore Mine

   “These conical rollers are a game-changer. Our belts stay aligned, and we’ve cut down on maintenance time.” – Liam Brown, Site Engineer

2. South African Port Terminal

   “The corrosion-resistant coatings are perfect for our coastal environment. These rollers are reliable and low-maintenance.” – Mpho Ndlovu, Logistics Manager

3. Peruvian Copper Mine

   “Our conveyor uptime is up 25% with these taper rollers. They handle tough conditions and keep the belt steady.” – Diego Vargas, Maintenance Supervisor

These testimonials show us deliver reliable, high-quality taper rollers.

Related Questions (FAQs):

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

1. What’s a DTII Taper Roller?

A conical roller used on the carrying or return side of conveyors to prevent belt deviation and ensure alignment.

2. How does it prevent belt deviation?

The tapered shape uses friction and belt tension to guide the belt back to the center, reducing misalignment.

3. What’s it made of?

Q235 steel for roller tubes, 45# steel for shafts, with optional rubber, polyurethane, or HDPE 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, taper angles, and coatings to fit your conveyor.

6. Where’s it used?

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