The Skid Steer Round Hay Bale Grab - the ultimate solution for effortlessly handling and transporting hay bales. Designed for both Skid Steer Loaders and Farm Tractors, this invaluable attachment revolutionizes the way you work with large quantities of hay.

With its sleek design and sturdy construction, the Hay Bale Grapple ensures quick and efficient movement of hay bales. Equipped with two robust 2 inch by 10 inch hydraulic cylinders, it boasts an impressive lifting capacity of 2,800 lbs (1300 kgs). This means you can effortlessly transport even the heaviest of bales with ease and precision.

What sets this attachment apart is its ability to stack two bales at a time. With the Skid Steer Round Hay Bale Grab, you can significantly increase your productivity by effortlessly stacking bales, saving you time and energy.

Compatible with 4-foot to 6-foot round bales, this attachment is versatile and adaptable to your specific needs. Whether you're a farmer, a rancher, or a professional landscaper, this remarkable tool enables you to tackle any hay-related task with confidence and efficiency.

Crafted with utmost precision and quality materials, the Skid Steer Round Hay Bale Grab guarantees durability and longevity. Engineered to withstand the toughest environments, this attachment is sure to become an indispensable asset in your arsenal of farm equipment.

Experience the convenience and efficiency of the Skid Steer Round Hay Bale Grab today. Say goodbye to back-breaking labor and hello to effortless hay handling. Elevate your productivity and streamline your operations with this exceptional attachment.

Tired of wasting time and effort sorting rocks and debris from soil? Meet the Skid Steer Rotary Rock Picker—the ultimate solution for fast, efficient, and hassle-free debris clearing. Designed for professionals across agriculture, mining, landscaping, forestry, and industrial maintenance, this powerful attachment transforms your skid steer into a high-performance cleanup machine.

Simply scoop up debris and engage the loader’s auxiliary hydraulics to spin the barrel. As the debris tumbles inside, the rotating motion knocks off excess dirt and soil, while anything smaller than 2.5” (6.35 cm) falls through the bars. The result? A barrel filled only with larger rocks and debris—ready for easy disposal or reuse.

Minimal Soil Loss – Keeps valuable topsoil while removing unwanted rocks and debris.

Unlike traditional rock rakes or manual picking, our Rotary Rock Picker delivers faster, cleaner results with less operator fatigue. Competing models often leave behind excess dirt or require multiple passes—but our design ensures maximum debris retention with minimal effort.

In the vast system of construction machinery, the track roller is a crucial 'foundation stone' beneath the wheels. As a core component of tracked machinery like excavators and bulldozers, it not only supports the weight of the machinery but also transmits driving force under complex conditions, while enduring various impacts and frictions from the ground. The performance of the track roller is vital for the efficient operation and long-lasting life of construction machinery. Today, we will delve into the manufacturing process behind the scenes, detailing how the production process of the track roller transforms raw materials into a reliable 'companion' of construction machinery.

1. Material selection: laying the foundation for excellent performance

The selection of materials is the first step in the production of track rollers, which directly determines their final performance and service life. In the field of construction machinery parts manufacturing, the commonly used materials of track rollers mainly include alloy structural steel, such as 50Mn, 40Cr, etc.

• 50Mn steel yield strength is more than 645MPa, tensile strength is more than 835MPa, with good strength and wear resistance, suitable for use in medium load and wear environment;

• 40Cr steel after tempering treatment yields a strength is more than 785MPa, tensile strength is more than 980MPa, excellent comprehensive mechanical properties, suitable for bearing large loads and complex stress conditions;

When selecting materials, it is essential to consider not only the material's inherent properties but also the specific application scenarios and operational requirements of the track roller. This ensures that the chosen materials meet the demands for strength, wear resistance, and corrosion resistance. Additionally, the quality inspection of raw materials is crucial, including chemical composition analysis and mechanical performance testing. Only materials that meet the standards can proceed to the subsequent production stages.

2. Casting or forging: shaping the prototype of the Track Roller

According to the structure and performance requirements of the track roller,the  casting or forging process can be used to manufacture the blank.

(1) Casting process

For the complex structure of the track roller body, the casting process is usually used. The common casting methods are sand casting and metal casting: (among which, sand casting is divided into artificial sand casting and mechanical sand casting)

• The melting temperature of sand casting is controlled at 1550-1600℃ (carbon steel material), the pouring speed is 5-8kg/s, and the cooling time is set to 4-8 hours according to the size of the workpiece, to ensure that the internal structure of the blank is uniform and there are no obvious defects such as pores and cracks on the surface of the product;

• Metal casting is preheated to 200-300℃ through the mold, which improves the size accuracy of the blank and reduces the surface roughness. The production efficiency is more than 30% higher than that of sand casting.

• Compared with artificial sand casting, mechanical sand casting is more efficient, and the residual sand on the surface of the products after mechanical sand casting is easier to remove; the beauty of the product will also be improved.

(2) Forging process

Forging is a better choice for the track roller shaft that can withstand high load:

• In the process of die forging, the blank is heated to 1150-1200℃ and formed under a press of 8000-10000 tons. The size accuracy of the blank can reach ±0.5mm and the performance can be improved by 20%.

3. Mechanical finishing: give the product a precise size and good performance

After the rough manufacturing is completed, mechanical finishing is required to achieve the dimensional accuracy and surface quality required by the design.

(1) Rough processing

Turning machines, milling machines, and other equipment are used to remove the allowance on the surface of the blank. The allowance for rough machining of the outer circle of the wheel body is 3-5mm, the allowance for the inner hole is 2-3mm, and the allowance for the end face is 1-2mm to ensure the stability of the reference for subsequent finishing.

(2) High-temperature cleaning

• The outer circle of the wheel is cleaned by high-temperature cleaning equipment to wash away the residues left on the surface after rough processing.

• The length of high-temperature cleaning depends on the material, mass, and weight of the track roller.

(3)Modulation processing

• Other manufacturers' roller modulation process is half of the wheel body separately modulation; while our company strictly adopts the whole track roller overall modulation treatment, which makes the track roller always maintain a high level of concentricity value, and thus increases the durability and service life of the product.

• For different products, select different modulation equipment to make the product finish strictly meet the requirements (standard: the surface finish of the track roller is below 3.2).

4. Heat treatment: the key process to improve performance

(1) Annealing and normalizing

The casting blank is annealed at 550-650℃ (holding for 4-6 hours) to eliminate internal stress, reduce the hardness to 180- 220HB, and improve the machining performance; the forging blank is normalized at 900-950℃ (holding for 2-3 hours) to increase the hardness to 220-250HB.

(2) quenching and tempering

• Quenching process heats the parts to 850-880℃ (40Cr steel), keeps it for 1-1.5 hours, and then uses oil cooling or water cooling to cool quickly, so that the surface hardness reaches HRC50-55;

• After quenching, it needs to be tempered at 200℃ for 2 hours to eliminate internal stress and control the final hardness at HRC45-60.

5. Surface treatment: enhance corrosion resistance and wear resistance

Common surface treatment methods and technical parameters:

• Surface quenching: Induction heating temperature 850-900℃, hardened layer depth 2-3mm, surface hardness HRC55-60, suitable for key stressed parts of shaft components.

6. Quality testing: control the product quality throughout the whole process

(1) Raw material testing

• Chemical composition analysis: using a direct reading spectrometer, the detection accuracy reaches 0.01% (such as carbon content detection error ≤±0.005%).

(2) Process detection

• The casting blank must be free of cracks, and burrs and flash must be completely removed. The surface roughness of the product must meet the standard data requirements. In the machining area, defects such as pores, sand holes, and slag must not exceed 1mm in size; for machining areas with a thickness of less than 1mm, the number of defects on one side must be no more than 5 (not concentrated).

• After heat treatment, the Rockwell hardness meter (HRC scale) is used to detect, the sampling rate of each batch is greater than or equal to 5%, and the hardness fluctuation range is less than or equal to ±2HRC.

• Our advantages: In the production of track rollers, after conventional heat treatment, the surface hardness layer of the track rollers will reach 3-4, 4-5, 5-6mm, depending on the machine model. However, ordinary manufacturers only have a thin layer of hardness of about 2mm on the surface, which is more wear-resistant.

Summary: Professional technology to achieve reliable quality

From material selection to quality inspection, every link embodies the professional wisdom and exquisite technology of mechanical manufacturing. The production process of the track roller is complex and rigorous, and each step has an important impact on the performance and quality of finished products.

In the field of construction machinery parts manufacturing, quality control and continuous improvement are the key to the survival and development of enterprises. We always adhere to the strict control of every production link, constantly optimize the process parameters, improve the level of production technology, and devote ourselves to providing customers with high-quality track roller products.

If you have any questions or need information about the production process of the track roller or our products, please feel free to contact us (binochen@yintparts.com) at any time. We will provide you with satisfactory solutions with professional knowledge and quality service. Follow us for more professional knowledge of construction machinery parts manufacturing!

At XIAMEN YINTAI MACHINERY, we engineer excavator and bulldozer idlers to outperform in the harshest environments. While others compromise, we implement Japanese-grade manufacturing discipline that global OEMs trust.

Material Superiority

Raw Steel Selection:

* Standard models: Premium 35MnBh alloy

* Heavy-duty models: OEM-grade 33Mn4 (identical to top-tier brands)

Critical Components:

* High-performance copper bushings

* Industrial-grade sealing systems

Unmatched Process Integrity

1. Complete Thermal Cycling

* Unlike typical manufacturers who skip steps:

* Weld repair → Full re-quenching → Precision grinding → Final heat treatment

* Mandatory tempering within 2-hour critical window

2. Depth Advantage

* 7-8mm hardening depth (2-3× deeper than industry standard 3mm)

*  "Hard shell-tough core" gradient structure

3. Japanese Precision

* Mazark CNC machining (imported)

* 100% non-destructive testing

Why It Matters

Competitors' shortcuts lead to:

* Premature wear in mining conditions

* Stress fractures from inadequate tempering

* Seal failures from inferior materials

Our idlers deliver 40%+ longer service life because we refuse to cut corners—where others see cost, we see durability.

Seat belts are a standard safety feature on most passenger vehicles, but are not a required safety feature on all passenger vehicles. For bus regulations in different regions, seat belts need to be configured according to the type of bus and geographic area of operation.

 

1、Federal Regulations

Because smaller buses are more likely to be at risk of accidents in the event of an emergency or collision, U.S. federal law requires small buses weighing less than 10,000 pounds to be equipped with lap and shoulder belts.

2、State regulations

Each state in the United States for large buses such as school buses, commercial buses, have the decision to mandatory use of seat belts, so each state's seat belt requirements will vary.

3、California's specific regulations

• California requires that both large buses and small buses must be equipped with seat belts to protect the safety of students;

• Commercial buses, including tour buses, charter buses, and other large vehicles used for transportation are required to be equipped with seat belts;

• Passengers between the ages of 8 and 16 years old are required to wear seat belts

• For violations of failing to equip seat belts, fines are assessed accordingly.

4、Space Division

Some school buses consider a tightly spaced interior seat with padding to absorb impacts to be a safe environment. It can provide passive protection for passengers.

5、Enforcement

Enforcement varies from state to state, and in general California's enforcement is usually stronger, while other states' regulations are less stringent and seat belt availability is more challenging.

6、Other States

Regulations vary from state to state, with some states choosing to rely on seat segregation, and some having no specific seat belt requirements at all.

 

Not all bus seats require seat belts. However, if the vehicle seat by the seat belt, Xiamen Van Seat suggests that you need to wear a seat belt to protect your driving safety while the vehicle is in motion.

For wheelchair accessible modified van vehicles, both wheelchair access and standard seating need to be accommodated. For the seats in the vehicle, people often wonder if wheelchair seats can simply be interchanged with regular seats. There are a number of factors to consider, but we do not recommend a simple seat swap.

 

• Safety Standards

Standard van seats and wheelchair seating configurations meet stringent safety standards and crashworthiness requirements and have been safety tested to withstand the impact of an accident and provide adequate protection for occupants, and simple replacement of the seats may increase the risk of injury in the event of a collision.

• Airbag Deployment

Airbags are deployed according to the position and direction of the seats in the van. Simply replacing the seats may cause the airbags to change or even fail to deploy properly, resulting in a serious accident.

• Laws and regulations

Randomly modifying the seat may jeopardize the proper use of the seat and the safety system, and may not comply with industry standards and laws and regulations, exposing you to the risk of fines or other legal consequences.

 

From a safety and legal point of view, although it's easy to simply replace a wheelchair seat in a van with a regular seat, we don't recommend doing so because changing the design of these seats could jeopardize passenger safety and legal compliance. If you want to make the change, you can do so safely and compliantly by using a folding seat base, transferring the seat, or consulting a professional van conversion specialist.

The all-new King Long PEV Series is not just electric, it's also driver-centric. 

Engineered to simplify operations and enhance on-road safety, every detail is designed to support a more intuitive and confident driving experience.

Key Upgrades:
✅ Intuitive Dashboard Layout 
✅ Integrated Safety Assist Features 
✅ Driver Cabin with Comfortable Climate

The future of electric driving starts with PEV. 

Introducing the Skid Steer Rock Picker attachment - a game-changer in rock-clearing technology. Designed to tackle even the most daunting tasks, this hydraulically powered attachment effortlessly removes rocks, boulders, stumps, and debris with ease.

Featuring a patented design and powered by hydraulics, this attachment is a force to be reckoned with. No rock is too small or too large for its capabilities, as it can handle rocks as small as 2 inches in diameter or as massive as 2 feet. It's truly a versatile powerhouse that leaves competitors in the dust.

Crafted from high-quality 1-inch thick high carbon steel, the rock picker's durable tines effortlessly dig into the ground, gripping and lifting rocks effortlessly. With its hydraulic powered reel that boasts a full 360-degree rotation, no stone goes unnoticed. It effortlessly picks up not only rocks but also concrete, rubble, wood, and various types of debris.

With the Skid Steer Rock Picker attachment, clearing your land has never been easier. Whether you're preparing for construction, landscaping, or simply maintaining your property, this attachment becomes your ultimate ally. Its versatility and efficiency make short work of any task, saving you valuable time and effort.

Invest in the Skid Steer Rock Picker attachment and experience a whole new level of convenience.  Don't let rocks and debris slow you down – take control and revolutionize your workflow today.

Introducing the Mini Hydraulic Grapple Bucket for Loader – your ultimate companion in tackling a wide range of tasks with ease and efficiency. This remarkable attachment empowers you to effortlessly move sand, dirt, rocks, mud, brush, logs, and various materials with its exceptional adaptability.

Harnessing the power of hydraulic cylinders, the Mini Grapple Bucket features two independent grapples that guarantee utmost security when handling uneven and oddly shaped loads. No more struggling or compromising on safety – this innovative tool ensures a firm grip on any challenge that comes your way.

With its compact design and robust construction, this grapple bucket seamlessly integrates with your loader, allowing you to conquer even the most demanding projects effortlessly. Its versatility knows no bounds, making it the ideal choice for a multitude of jobs.

Experience the convenience of transforming difficult-to-handle materials, such as scrap and waste, into manageable loads effortlessly. Say goodbye to time-consuming manual labor and welcome the efficiency of this remarkable attachment.

Designed with precision and engineered to perfection, the Mini Hydraulic Grapple Bucket for Loader is the epitome of reliability and durability. Its seamless integration ensures smooth operation, while its advanced features make it an indispensable addition to your equipment fleet.

Embrace the power of the Mini Hydraulic Grapple Bucket for Loader and unlock endless possibilities. Revolutionize your workflow, streamline your operations, and embrace the future of efficient material handling. Get ready to tackle any task with confidence and ease.

Introducing the ultimate solution for effortless implement switching – the Category 1 and 2, 3 Point Quick Hitch. Designed to enhance your tractor's functionality, this innovative hitch allows you to seamlessly transition between various attachments with ease.

Equipped with the Category 1 and 2 compatibility, our 3 Point Quick Hitch effortlessly connects to your tractor's 3 Point lift arms. Say goodbye to time-consuming manual connections and laborious attachment changes. With this user-friendly hitch, you can attach or remove implements in a matter of minutes, maximizing efficiency in your daily tasks.

Crafted from robust 3 x 3-inch structural steel tubing, our Cat 1 Quick Hitch offers exceptional durability and long-lasting performance. Engineered to withstand the toughest working conditions, this hitch ensures reliable and secure connections every time. Your peace of mind is guaranteed.

The convenience doesn't stop there. The top link hook on our 3 Point Quick Hitch allows for quick and hassle-free connection to the 3 Point attachment. No more struggling or wasted effort. With just a few simple steps, you can effortlessly hook up your implements and get to work in no time.

Enhance your productivity and streamline your operations with the Category 1 and 2, 3 Point Quick Hitch. Designed with precision and efficiency in mind, this hitch is the perfect companion for any tractor owner. Don't let implement changes slow you down – experience the seamless transition only our Quick Hitch can provide.