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Rock Crusher Replacement Parts HP Series Drilled Block
Precision-engineered Drilled (HP500) and Perforated (HP6) Blocks are core housing components suit for the Metso Nordberg HP series hydraulic power unit. They are equipped with high-performance valves imported from Germany, ensuring OEM-equivalent reliability and performance.
Item No :
HP100, HP200, HP300, HP400, HP500, HP700, HP800, HP900, HP3, HP4, HP5, HP6, MP800, MP1000, MP1250Part Number :
ONA-N29201816, ONA-N29201813, ONA-MM1176523, ONA-MM1174024Payment :
TTProduct Origin :
ChinaColor :
CustomizedShipping Port :
ShanghaiLead Time :
StockWeight :
30kgOrder(MOQ) :
1Product Introduction

Drilled Block
Quantity: 1 of each in the crusher
Installation Location: Installed in the hydraulic station, containing a valve block and various valve components.
Material: Aviation-grade aluminum + Rexroth valves
Function: The relays in the electrical control cabinet transmit signals to each valve in the valve assembly, controlling the entire hydraulic system (clamping cylinder, tramp release cylinder, hydraulic motor assembly, hydraulic pump, and other hydraulic components).
More functions are as follows:
Material Flow Control: The drilled block controls the material flow into the crushing chamber by adjusting the valve opening, thus affecting crushing efficiency and output. Appropriate material flow reduces the risk of blockage and overload, ensuring stable crusher operation.
Crushing Chamber Pressure Adjustment: The drilled block changes the pressure within the crushing chamber by adjusting the valve position, thus affecting the crushing effect. Appropriate pressure ensures thorough crushing of the material within the chamber, improving the quality of the finished product.
Equipment Protection: During crushing, if encountering uncrushable foreign objects or overload conditions, the drilled block can react quickly to protect the equipment. For example, by closing or adjusting the valve position, it prevents equipment damage.
Adaptability to Different Working Conditions: By adjusting the drilled block settings, the crusher can adapt to different working conditions, such as processing materials of varying hardness or changing production requirements. This flexibility makes the crusher more suitable for diverse working environments.
More Models:
Which Parts Included in The Drilled Block?
Eg: HP300: ONA-N29201816
We can provide the entire drilled block, also can provide valves in single.

| No. | Part Number | Description | Quantity |
| 1 | ONA-7002480887 | PRESSURE RELIEF VALVE | 1 |
| 2 | ONA-7002480888 | PRESSURE RELIEF VALVE | 1 |
| 3 | ONA-MM0232783 | PRESSURE RELIEF VALVE | 1 |
| 4 | ONA-N02482102 | PRESSURE RELIEF VALVE | 1 |
| 5 | ONA-N02482166 | VALVE, DIRECTIONAL | 2 |
| 6 | ONA-N02482165 | VALVE, DIRECTIONAL | 2 |
| 7 | ONA-7002480753 | VALVE, CHECK | 1 |
| 8 | ONA-7002480754 | VALVE, CHECK | 1 |
| 9 | ONA-N02482101 | VALVE, PRESSURE RELIEF | 1 |
| 10 | ONA-7002480755 | VALVE, SHUTTLE | 1 |
| 11 | ONA-MM0232727 | VALVE, FLOW CONTROL | 2 |
| 12 | ONA-MM0232715 | VALVE, DIRECTIONAL | 1 |
| 13 | ONA-MM0232725 | VALVE, DIRECTIONAL | 1 |
| 14 | ONA-N29201813 | DRILLED BLOCK | 1 |
| 15 | ONA-MM0233032 | FILTER CASE | 1 |
| 16 | ONA-MM0232736 | FILTER CARTRIDGE | 1 |
| 17 | ONA-MM0232739 | INDICATOR, CLOGGING | 1 |
| 18 | ONA-7002480889 | PRESSURE RELIEF VALVE | 1 |
| 19 | ONA-7001624008 | WASHER, PLAIN | 3 |
| 20 | ONA-7001532104 | SCREW, HEXAGONAL | 3 |
| 21 | ONA-704103348900 | HEXAGON SOCKET HEAD CAP SCREW | 8 |
| 22 | ONA-704103356010 | HEXAGON SOCKET HEAD CAP SCREW | 4 |
| 23 | ONA-MM0237246 | HEXAGON SOCKET HEAD CAP SCREW | 4 |
Is there any difference from ONA crushing cone crusher spare parts and original parts?
1. Design and Fit
ONA manufactured based on the original engineering drawings and specifications, ensuring optimal performance and compatibility.
2. Quality and Reliability
ONA has strict quality control processes and uses high-quality materials to ensure the durability and longevity of their crushing plant parts. This results in fewer breakdowns and longer service life.
3. Warranty
Using ONA crushing machinery parts ensures that your order remains under warranty. ONA stands behind their parts and can provide support and replacement if issues arise.
4. Expertise and Support
ONA has extensive expertise in the equipment. They can provide technical support and solutions to address issues effectively.
5. Cost
ONA often provide better long-term value. The same quality and reliability can lead to lower maintenance costs and fewer unexpected repairs. Compared with original price, ONA is more high-cost performance.
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