OceanaGold gets permit for WKP in New Zealand

OceanaGold (TSX: OGC) announced on Thursday it has received the mining permit for Wharekirauponga (WKP) in New Zealand, granting the company exclusive right to the mineral resource.

The miner purchased the Newmont/Glass Earth interest at WKP – located in the Coromandel Forest Park on the southern Coromandel Peninsula – in 2016, incorporating it into its Waihi operations. WKP currently has an indicated resource of 421,000 oz of gold at 13.4 g/t gold and an inferred resource of 717,000 oz at 12 g/t gold.

“As part of the greater Waihi District Study, the WKP deposit is expected
to deliver significant value for shareholders. We expect to continue
drilling there for several years to come as we advance the project through its life cycle,” said OceanaGold CEO Michael Holmes.

“We are assessing the option of WKP as a state-of-the-art underground mining operation. The Waihi District has the potential to extend Waihi’s mine life to 2036 and beyond while providing meaningful socio-economic
benefits for stakeholders.”

Based on the recently completed Preliminary Economic Assessment (PEA) for the Waihi District, the company envisages underground mining at WKP and first production in 2026, with processing taking place at the existing Waihi plant.

Over the currently estimated life of mine, WKP is expected to produce 190,000 to 230,000 ounces of gold annually.

OceanaGold’s producing operations are in New Zealand and the US – this year’s total production guidance for the company stands at 360,000 oz. to 380,000 oz. at all-in sustaining costs of $1,075 to $1,125 per oz.

The company’s stock was down nearly 2% on the TSE midday Thursday. The miner has a C$2.2 billion market capitalization.

Different crush stone, different work conditions, need to select the right material suit to cast crusher jaw plates. For example, Mn14 jaw plates can crush soft stone, but can not suit to crush hard stone, because it wears out speed too quickly if use Mn14 jaw plates to crush hard stone. Qiming Machinery can supply different material crusher jaw plates to suit customers’ inquiries. Qiming Machinery jaw plates material include: manganese jaw plates, TIC insert jaw plates, and alloy steel jaw plates.

Manganese Crusher Jaw Plates

Manganese steel’s ability to work harden from impact loading along with its exceptional toughness make it the best wear material choice for many demanding applications. The hardness of manganese steel in the solution annealed and water quenched condition is normally around 220 HB. It is possible to strain to harden this material to approximately 500 HB. In order to achieve this high hardness level, the impact loading must be high while the material wearing away from gouging abrasion is limited. It is typical in crushing applications where the main wear mechanism is gouging abrasion that the manganese steel will harden to some intermediate level, typically 350-450 HB.

Qiming Machinery supplies different grade manganese steel to crush jaw plates, as follows:

• Mn14
• Mn14Cr2
• Mn18
• Mn18Cr2
• Mn22
• Mn22Cr2

High Manganese Chemical Composition Mechanical

Different Crush Stones, Different Manganese Steel

Blasted rock

• Difficult and abrasive:  Mn18Cr2 or Mn22Cr2
• Difficult and non-abrasive: Mn18Cr2
• Medium and abrasive: Mn18Cr2 or Mn22Cr2
• Medium and non-abrasive: Mn18Cr2
• Easy and abrasive: Mn14Cr2 or Mn18Cr2
• Easy and non-abrasive: Mn14Cr2

Slabby soft rock: Mn14Cr2 or Mn18Cr2

Gravel

• Abrasive: Mn18Cr2
• Non-abrasive: Mn14Cr2 or Mn18Cr2

Slippery/ round rock

• Abrasive: Mn18Cr2 or Mn22Cr2
• Non-abrasive: Mn14Cr2 or Mn18Cr2

Asphalt recycling: Mn14Cr2 or Mn18Cr2

Concrete recycling:Mn14Cr2 or Mn18Cr2

Demolition waste recycling: Mn14Cr2 or Mn18Cr2

TIC inserts Crusher Jaw Plates

Qiming Machinery has improved our customer jaw plate by TIC(titanium carbide) insert. Qiming Machinery TIC inserts jaw plates are designed to improve efficiency and reduce costs by extending wear life and minimizing downtime. Compare with normal manganese jaw crusher liners, our TIC insert wear parts span life can be 2-3 times. Based on our customer feedback, the more hard material to crush, the long span life.

• Its working principle: Titanium carbide bars are got the impact at first. Because it has a high hardness (around 65-75 HRC), the bars can work for a long time. At the same time, the manganese body also gets little impact, the body becomes harder(From 200HB to 500HB).
• Its working conditions: This material very good in crush difficult and abrasive stone.
• Compare with Mn18Cr2 crusher jaw plates, its span life can 1.5-2.5 times.
• This material just suits wide tooth or super tooth jaw plates, not suit shape tooth jaw plates.

Alloy Steel Crusher Jaw Plates

These alloy steel jaw plates just use to magnetic separation stone, and the jaw plate weight less than 500 kg. Its elements:

• C 0.40%
• Mn 1.9%
• Si 1.4%
• S 0.012%
• P 0.016%
• The rest

@Nick Sun    NICK@XZHUAGANG.COM