Track Drive Planetary Gearbox for Cold Planers Road Milling

Track Drive Planetary Gearbox specially designed for cold milling machines

In modern road maintenance and reconstruction projects, cold milling machines, as a key technical equipment, play an indispensable role. This type of mechanical equipment uses efficient milling devices to precisely remove existing road surfaces. Whether it is the milling and renovation of old asphalt layers or the pretreatment before repairing damaged pavement, they all show excellent results.It is against this background that we introduce the Track Drive Planetary Gearbox, specially designed for cold milling machines. The design concept of this high-performance planetary gearbox is to optimize the overall performance of the cold milling machine. By adopting a precise planetary gear transmission structure, the torque carrying capacity and transmission efficiency of the power system are significantly improved. Not only that, Track Drive Planetary Gearbox also focuses on durability and stability, which can maintain excellent performance in harsh construction environments, reduce downtime and maintenance costs, thereby helping road maintenance teams complete various tasks more efficiently. With its sophisticated craftsmanship and advanced design concept, this gearbox not only improves the operating speed and milling quality of the cold milling machine, but also greatly enhances the equipment's adaptability and service life under complex working conditions.

How Track Drive for Cold Planers Road Milling works？

Track Drive Planetary Gearbox is usually installed in the travel drive system of the milling machine in Cold Planers Road Milling. Specifically, it is the core transmission component connecting the engine and the crawler drive wheels.

• Torque amplification and distribution: The main function of the Track Drive Planetary Gearbox is to appropriately amplify the power generated by the engine and evenly distribute it to the track drive wheels on both sides through the planetary gear structure, providing sufficient driving force to push the cold The milling machine moves forward or backward and maintains a stable travel speed and milling depth during milling operations.
• Speed control: By changing different combinations and transmission ratios of planetary gears, precise control of the cold milling machine's traveling speed can be achieved to adapt to different milling needs and road conditions.
• Bear large loads: Since the cold milling machine may encounter greater resistance during operation, especially when milling harder or deeper road surfaces, the planetary gearbox can effectively withstand and transmit these forces due to its special load dispersion characteristics. Large load ensures stable operation of the equipment.

Technical Parameters and Selection Table

Type	Max. torque N.m	Range of ratios (i)	Max. Input speed (rpm)	Braking torque (N.m)
400T1	1300	6.09	1000	130
401T1	2000	6.2	1000	270
402T2	5000	12.4-37.1	3500	-
403T2	7000	15.4-40	3500	270
405T	10000	20-80	3500	270
405.4T	11000	26-57	3500	280
406AT	17000	23-220	3500	430
406T	18000	28-140	3500	430
406BT3	24000	63-136	3500	430
407AT	26000	39-136	3500	430-530
407T3	36000	63-136	3500	530
410T3	50000	62-177	3500	530
413T3	60000	86-172	3500	610
414T3	80000	76-186	3500	1200
415T3	110000	81-215	3000	1200
416T3	160000	87-255	3000	2000
417T3	220000	123-365	3000	2000
418T3	270000	166-364	3000	2000
419T3	330000	161-306	2500	3000
420T4	450000	296-421	2500	1700

Core Technical Characteristics of Our Track Drive Planetary Gearbox

1. Precision planetary gear design: Track Drive Planetary Gearbox adopts the principle of planetary gear transmission. Its multi-point meshing characteristics enable it to effectively cope with large loads in cold milling machine operations and ensure accurate transmission.
2. High-quality materials and workmanship: The gearbox is made of high-strength high-quality steel and other wear-resistant materials, coupled with advanced heat treatment and precision manufacturing processes, which greatly improves the durability and service life of the product.
3. High torque transmission: The product can stably output high torque during the milling process, greatly improving work efficiency, especially when handling heavy-duty milling tasks.
4. Precise speed regulation and control: Equipped with a precision control system, the speed can be flexibly adjusted according to different road surface milling needs, ensuring strong adaptability and good operating results.
5. Long-term and low-dimensional: Through optimized design, the gearbox has a long life and low maintenance costs. Even in harsh environments and long-term work, it can still maintain stable performance and reduce maintenance frequency and costs.

Adaptable Cold Planers Road Milling Brands and Models

Our Track Drive Planetary Gearbox is designed for wide applicability and a high degree of customization flexibility to accommodate most major Cold Planner Road Milling makes and models on the market. Whether it is interface size, power matching, or torque requirements, we can customize the design according to the customer's individual requirements to ensure seamless connection and optimal performance with the cold milling machine host.For example, our Track Drive Planetary Gearbox has been successfully used in various models such as Wirtgen’s W 100 CFi and W 210 Fi, Cat’s PM620, PM820 and other models, as well as Bomag’s BM 1000/ 35. BM 2000/60-2 milling machine, etc. In addition, it also includes but is not limited to Dynapac's CC 1200 VI and CC 6200 IV series, as well as Volvo Construction Equipment's P7110B, P6870C and other cold milling machine models.

Practical Cases and Customer Feedback

Case 1: Urban main road upgrade and reconstruction project In the main road upgrade and reconstruction project of a large city, the construction party used a cold milling machine equipped with a Track Drive Planetary Gearbox to perform large-area road milling operations. According to feedback from the on-site project manager, the gearbox has been working continuously for more than 800 hours without failure, greatly reducing non-productive downtime. The project team spoke highly of this, saying that "the performance of the Track Drive Planetary Gearbox far exceeded expectations and greatly contributed to the success of the gearbox." Improved project progress."Case 2: Rough Road Repair Project in Mountainous Areas During a road repair project in a remote mountainous area, the geographical environment was extremely complex, which posed a severe test to the performance and durability of the equipment. The cold planer equipped with Track Drive Planetary Gearbox still performs very robustly in various difficult conditions such as steep slopes and gravel roads. Customer surveys show that the service life of this gearbox is significantly longer than competing products of the same type, and the maintenance cost is low. Customer satisfaction is as high as over 95%.Case 3: High-speed emergency repair mission In a highway emergency repair mission, the cold milling machine equipped with Track Drive Planetary Gearbox played a crucial role. In the later follow-up evaluation, the user said: "This planetary gearbox demonstrates unparalleled reliability and high efficiency at critical moments, and has become our preferred configuration for performing similar tasks."