Which crusher for kimberlite ore 55 tph in Botswana

For diamond mining operations in Botswana – from the Orapa and Letlhakane regions to Jwaneng – processing kimberlite ore requires careful crusher selection to avoid over‑comminution of diamond crystals. Kimberlite is a soft to medium‑hard rock (Mohs 2‑4) but can contain hard xenoliths. The crushing circuit must liberate diamonds while minimizing breakage of large stones. When you ask which crusher for kimberlite ore 55 tph in Botswana, a two‑stage jaw plus roll crusher or jaw plus cone crusher is a widely used configuration. OCP Mechanical Company, a factory‑direct manufacturer with over 40 years of experience, supplies crushers designed for kimberlite applications, backed by 24/7 online support.

Note: Product data are constantly updated; the latest specifications should be confirmed with our online customer service.

Why a jaw crusher is the practical choice for primary kimberlite crushing

Kimberlite is typically soft to friable, but it may contain hard mantle xenoliths (garnet, pyroxene, olivine). A primary jaw crusher (Type J-600x900 or J-750x1060) with a wide CSS (50‑80 mm) reduces run‑of‑mine kimberlite from 400‑600 mm to minus 80‑120 mm. The wide setting reduces fines generation and diamond breakage. For 55 tph, a Type J-600x900 with a 75‑90 kW motor is a practical choice. Many Botswana diamond mines have successfully used this crusher size, reporting acceptable product size and low diamond damage. Note: Product data are constantly updated; the latest specifications should be confirmed with our online customer service.

Secondary crushing: cone or roll crusher?

When you ask which crusher for kimberlite ore 55 tph in Botswana for secondary reduction, two options exist: a roll crusher or a cone crusher.

• Roll crusher – Twin or triple rolls with smooth or corrugated surfaces are highly reliable for kimberlite because they compress rather than impact, reducing diamond breakage. A roll crusher can reduce 80‑120 mm feed to 15‑25 mm product with minimal fines. However, roll crushers have lower capacity per unit size and higher maintenance on roll shells.

• Cone crusher – A short‑head cone crusher (Type C-55) with a wide CSS (10‑16 mm) can achieve similar reduction but produces more fines. For kimberlite with small diamond size distribution, a cone crusher is acceptable. For ore with large, valuable diamonds, a roll crusher is widely preferred.

Many Botswana operations use a two‑stage jaw + roll crusher circuit, followed by scrubbing and screening. OCP can supply both types. For 55 tph, a double roll crusher (Type R-55) ex‑works ranges from $40,000to$70,000 USD; a cone crusher ranges from $55,000to$85,000.

How to minimize diamond breakage during crushing

The answer to which crusher for kimberlite ore 55 tph in Botswana also involves operational practices. Use a wide CSS (50‑80 mm) in the jaw crusher to pass larger diamond crystals without fracture. Install a vibrating grizzly feeder with bars spaced at 40‑60 mm to scalp out fines before the secondary crusher. For the secondary stage, set the CSS wider than the expected diamond size (e.g., 15‑20 mm) to allow diamonds to pass without being crushed between rolls or mantles. Use a metal detector and magnetic separator to remove tramp iron, which could fracture diamonds. OCP provides custom wear materials that are less aggressive on diamond surfaces.

How to select the right crusher for your Botswana operation

To choose which crusher for kimberlite ore 55 tph in Botswana, provide OCP’s engineers with the following: kimberlite hardness (Mohs), abundance of large xenoliths, diamond size distribution (if known), and desired product size. For typical Botswana kimberlite (medium‑hard, few large diamonds), a jaw + cone circuit is cost‑effective. For ore containing very large, high‑value diamonds, a jaw + roll circuit with a wide setting is strongly recommended. OCP can test your ore sample to recommend the optimal crusher type and CSS. We also supply crushers with diamond‑friendly features such as smooth mantles and non‑abrasive roll shells.

A complete jaw + roll crusher line for 55 tph ex‑works ranges from $90,000to$150,000 USD. Shipping to Botswana (via Durban or Walvis Bay) adds $10,000‑$20,000. A starter set of wear parts adds $3,000‑$6,000.

Why OCP is your trusted crusher supplier for kimberlite in Botswana

Understanding which crusher for kimberlite ore 55 tph in Botswana is only part of the investment – you also need a partner who supports you with regional spares and technical advice. OCP Mechanical Company has four decades of experience in crushing equipment for the diamond mining industry. Our 24/7 online team helps with CSS tuning, roll shell replacement, and diamond‑saving practices. We keep common jaw plates and roll shells in our South African warehouse for fast delivery to Botswana. We invite you to request a no‑obligation quote and experience factory‑direct pricing.

For a no‑obligation consultation on which crusher for kimberlite ore 55 tph in Botswana, simply click the live chat icon on this page. Our online customer service team is available 24 hours a day, 7 days a week, to provide free price quotes, equipment recommendations, and installation advice – helping you liberate diamonds efficiently while protecting their value.