Product Description
HX horizontal grinder is a dedicated equipment for biomass power plant for fuel reserve and MDF plant. Raw materials mainly consist of all kinds of trees, undersized log, timber felling residues (such as branch, twig, etc.), wood pallet, wood building template, and wood processing residues ( such as slab, batten, log core, building templates, etc.) and non-wood raw materials (such as waste of flax, reed, bamboo ,maize straw, cotton stalk, etc.).
Operating Procedures
1. After finish installation, inspect the below items before starting:
a. Check if blade and dead knife's fastening torque can meets the specification.
b. There is no metal, stones and other hard sundries in the machine.
c. No impact sound if pull belt pulley to rotate at least one round by hand.
d. Adjust triangle belt tension, not too loose or too tight, then install shield.
e. Electrical system ground lead is secure and reliable.
f. Hydraulic system joint seals well, no leakage.
g. Rotor and feed roller run in the right direction.
2. Boot sequence: firstly start the main motor, then start the discharging system motor, start the feeding system motor after rotor speed is stable, and then begin to feed. Shutoff sequence: firstly shut off feeding system motor, shut off the main motor after there is no material being crushed in the mainframe, shut off discharging system motor at last. The above order cannot be reversed.
3. Machine idle test inspecting items:
a. Check if there is abnormal sound or noise, if any, rule out in time
b. Bearing temperature rise shall not exceed 40 ºC, the highest temperature shall not exceed 80 ºC
c. Machine is without significant vibration, vibration intensity is no more than 11 mm/s; Fasteners are tight; Moving parts is flexible action, no jam phenomenon.
d. Electric and hydraulic function is accurate, sensitive
e. Limit switch and safety switch should be accurate and reliable
f. Duration of Idling test is not less than 1 h
4. Perform load test after idling test is passed and completed.
a. Output system is normal, no sign of choking.
b. Duration of load test is 4 to 8 hours;
Below items shall be inspected during the load test:
a. All items in the idling test.
b. Dead knife cutting edge without defection such as rolled edges, missing bit, cracks and etc.
c. Current of each motor does not exceed the rated data.
Then the machine can work well after passing the above test.
NOTE: NEVER FEED IN METAL OR ROCK
Maintenance Check List Of Parts
| No. |
List of Parts |
Daily |
Weekly |
Monthly |
Quarterly |
Yearly |
| 1 |
Exposed Screws |
|
√ |
|
|
|
| 2 |
All Screws |
|
|
|
√ |
|
| 3 |
Cutter (blade or hammer) |
√ |
|
|
|
|
| 4 |
Bed Knife |
|
√ |
|
|
|
| 5 |
Screen |
|
|
√ |
|
|
| 6 |
Triangle Belt |
|
|
√ |
|
|
| 7 |
Bearings |
|
√ |
|
|
|
| 8 |
Belt of Discharge Conveyor |
|
√ |
|
|
|
| 9 |
Rollers of Discharge Conveyor |
|
√ |
|
|
|
| 10 |
Chain of Feeding Conveyor |
|
|
√ |
|
|
| 11 |
Rollers of Feeding Conveyor |
|
|
√ |
|
|
| 12 |
Teeth of Feeder Roller |
|
|
|
√ |
|
| 13 |
Hydraulic Pump |
|
|
|
√ |
|
| 14 |
Hydraulic Valves |
|
|
|
√ |
|
| 15 |
Motors for Hydraulic System |
|
|
|
|
√ |
| 16 |
Hydraulic Hoses |
|
|
|
|
√ |
| 17 |
Cleaning of Control Cabinet |
|
√ |
|
|
|
| 18 |
Tightening of screws in Control Cabinet |
|
|
|
|
√ |
| 19 |
Wiring connections in Machine |
|
|
|
√ |
|
| 20 |
Electric Motors |
|
√ |
|
|
|
| 21 |
Oil Level |
|
|
|
√ |
|
| 22 |
Thorough Check |
|
|
|
|
√ |
Remark: The above inspection frequency is only for the machine in good working condition. If something unexpected happened, please check the machine immediately.
Components Replacement
1 Change of blade
Disassembly of blades: After the machine completely stops, loosen the cover lid tightening screw, join cover lid and lifting arm with bolt, start the oil cylinder to lift up lifting arm and the cover lid, rotate the safety plate so that lifting arm is fixed sturdy, then cut off power supply, unscrew the fastening bolts, tapping slightly, then blades can be taken down.
Installation of blade:
a. Clean up the contact area for installing blades with compressed air or other effective methods carefully.
b. According to the sequence of disassembling blades, put back blades
c. Tighten blades fastening bolt with delivery attached torque dupler and torque spanner.
Blade sharpening: When blades need to be sharpened, need add cooling fluid, the weight deviation of two blades cannot exceed 25g.
2 Change of hammer
After the machine completely stops, the feed hopper stop rotation, loosen screw on the side, start the oil cylinder to flip over feed hopper and the cover, turn the insurance plate to support the feed hopper tightly, then cut off power supply, unscrew the fastening bolts, tapping slightly, then hammer can be taken down.
Installation of hammer
a. Clean up the contact area for installing hammers with compressed air or other effective methods carefully.
b. According to the sequence of disassembling hammer, put back hammers, guarantee the dynamic balance of the rotor.
c. Tighten the fastening bolt with delivery attached torque enhancer and torque wrench
Hammer repair: When welding repair the hammers, must add cooling fluid, the weight deviation cannot exceed 15g.
3 Change of dead knife
a. Loosen and take down the two clip keys or fastening screws which on the chassis.
b. Use dead knife disassembly tool or pull out the dead knife by hand directly.
c. Loosen the dead knife fastening bolt, take down the dead knife and change
Dead knife sharpening
There are 4 cutting edges for dead knife, can exchange the other side edge if one cutting edge is blunt. Sharpen the dead knife when all cutting edges are worn. When sharpening, must add coolant, and ensure the cutting edge angle.
4 Change of screen
a. lock the below 2 holes with the special rod.
b. Lock the 2 holes beside the feeding cover with suitable rod.
c. Remove the following screws
d. Use hydraulic to overturn the rotor cover
e. Change the screen
Product Structure
The wood chipper is mainly composed of chassis, dead knife base, dead knife, chipping rod, rotor, main shaft, hammer or blade, upper feeding mechanism, below feeding mechanism, feeding device, discharge device, hydraulic system and electric control system.
Product Features
1) Rotor rotation speed adjustable. According to the customer's specific requirements, the machine can be modified, such as adjusting the corresponding parts to change the rotation speed of the rotor, to meet the different requirements of customers on discharging granularity and production capacity.
2) Unique dead knife design. Thanks to the decades of experience, we create a special shock absorbing buffering dead knife design and already got the patent. This design protects the rotor, decreased the maintenance cost and extends the life span of the machine.
3) Forced auto feeding system. Start the oil pump, oil cylinder piston extend-retract, swing device rises or falls, then the upper feed roller adapt to the nature of feedstock automatically. This function enables the machine can adapt to wide range raw material and the feed process is more smooth. We got the patent for it.
4) Easy maintenance. Thanks to the hydraulic system, it is easy and convenient to open the machine cover to check or replace the cutter, screen mesh and so on.
5) Chain conveyor. The feeding chain conveyor is made of high manganese steel with the thickness 10mm, which is a typical anti-wear steel, cast organization is austenite and carbide. Via the water toughening treatment, the surface would be rapidly hardening and that make its internal remains the good toughness and deformability under the condition of strong impact and extrusion and the hardening layer with good wear resistance. These characteristics determine that the service life can be up to 22000 hours, which is better than the traditional belt's 2000 hours. In addition, the traditional belt' s with small friction coefficient which will cause the feed speed to be slow and not smooth, but the chain type solved all the above questions.
6) Perfect chain conveyor length. The length of the chain conveyor is matched with the machine running, which can achieve the best machine performance.
7) Dual control, One is fixed electrical cabinet and the other is remote control, that makes the operation more safe and convenient.
8) Automatically frequency conversion contorl for feeding system. Feed roller and chain conveyor can be adjusted automatically by the frequency conversion that makes the operation is safe and simple. According to the specification and quantity of raw materials, the feeding speed can be adjusted automatically to save energy and promote efficiency. It can adjust feed speed automatically according to the load of main motor to avoid idle running of machine.
9) Overload protection.The main motor starts by a soft start switch, and the circuit has an overload protection device, which automatically cuts off the circuit when overloaded.
10) Interlocking control of feed system and avoid feeding plugging. During normal operation, feeding motors and chain conveyor motor work simultaneously. Once there is a plugging, feed system stop feeding, two feeding motors and chain conveyor reverse together.
11) Pulley secured by inner hole locking device. Easy to assemble and disassemble. No the traditional violent assemble and disassemble. Protect the main motor. This makes easy to maintain the main and prolong the life span of the main motor.
Product Parameters
| Model |
HX1400-800 |
HX1600-600 |
HX1600-800 |
HX2000-1000 |
| Rotor diameter (mm) |
1100 |
800 |
1100 |
1400 |
| Cutter quantity (piece) |
8 or 28 |
8 or 30 |
8 or 36 |
6 or 42 |
| Input size (mm) |
1400-800 |
1600-600 |
1600-800 |
2000-1000 |
| Rotor rotation speed (rpm) |
900 |
760 |
900 |
432 |
| Max material diameter (mm) |
400 |
300 |
400 |
500 |
| Production capacity (tph) |
25-30 |
25-30 |
35-40 |
50-70 |
| Main motor power (kw) |
250 |
250 |
315 |
400 |
| Chain feed conveyor length (m) |
6 |
6 |
6 |
8 |
| Discharge conveyor length(m) |
10 |
10 |
10 |
10 |
| Weight (t) |
26 |
23 |
27 |
52 |
| Dimension (m) |
10x2.62x3.4m |
10.5x2.64x3 |
11.03x2.85x3.4 |
13.8x3.28x3.9 |
| Model |
HX1260-500 |
HX1400-500 |
| Rotor diameter (mm) |
800 |
800 |
| Cutter quantity (piece) |
8 or 24 |
8 or 28 |
| Input size (mm) |
1250-500 |
1400-500 |
| Rotor rotation speed (rpm) |
650 |
760 |
| Max material diameter (mm) |
300 |
300 |
| Production capacity (tph) |
12-15 |
15-20 |
| Main motor power (kw) |
160 |
200 |
| Chain feed conveyor length (m) |
5 |
5 |
| Discharge conveyor length(m) |
10 |
10 |
| Weight (t) |
14 |
16 |
| Dimension (m) |
8.1 x 2.2 x 2.6 |
8.5 x 2.5 x 2.7 |
Packaging & Shipping
Machine working site
Company Profile
Shandong Hongxin Machinery Co., Ltd is a professional manufacturer of log debarker, wood chipper, brush chipper, horizontal grinder, tub grinder, hammer mill, pellet mill, briquette machine etc in China with a history of more than a decade. Meanwhile, we are capable of designing complete production line according to customers' needs.
Shandong Hongxin Machinery
- Shandong Hongxin Machinery is currently China's largest manufacturer of biomass crushing, grinding, pelleting and briquetting equipment. Our products are exported worldwide and have gained market favor as well as wide recognition from customers.
- Our company is the only manufacturer involved in formulating China's national industry standards. Based on our own standards, we have assisted in drafting the industry standards for biomass crushers and wood chippers.
- We currently operate two R&D departments, with successful patent applications every year, ensuring continuous innovation in our equipment and maintaining world-leading technology.
- We are equipped with advanced and high-performance machining facilities, including large-scale laser cutting machines, CNC machining centers, and heavy-duty milling machines, guaranteeing precision manufacturing and robust product quality.
- Our company employs over 190 skilled technicians and a 15-member after-sales service team with expert technical capabilities, ensuring timely maintenance and repair services for our equipment.
- With over 20 years of experience, we have established long-term, reliable partnerships with subcontractors, providing strong support for the overall stability and reliability of our products.
- We prioritize corporate culture, fostering a people-oriented work environment. Our front-line workers treat the factory as their home, demonstrating strong responsibility, technical excellence, meticulous attention to detail, and a commitment to continuous improvement in production.
- We have implemented a step-by-step inspection process, where the operator of each stage also acts as the inspector of the previous stage. If any issues are detected, immediate traceability and corrective actions are taken, ensuring that every machine meets quality standards before delivery.
With a complete understanding of the requirements of both our customer and the industry, we offer defect-free equipment and services.
Certifications
Audited Supplier 
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