Manganese Crusher Liners

Premium manganese crusher liners for cone, jaw, gyratory, and impact crushers are cast using varying grades of manganese steel. Locally stocked in New Zealand and engineered to suit most OEM brands and models of cone, jaw, gyratory, and impact crushers.

Maganese Grades

14%, 18%, 22%

Optimise Crusher Performance with Premium Manganese Crusher Liners

Rocktec supplies Mining Wear Parts (MWP) premium Manganese Crusher Liners — cast in multiple grades, heat-treated for toughness, and precision-machined for a consistent fit and extended wear life.

Our liners are built to deliver longer wear life, lower cost per tonne, and less downtime, backed by Rocktec’s local engineering expertise and proven in-field performance.

Whether you’re operating established OEM equipment or custom installations, Rocktec will match the right liner profile and grade to your crusher, material, and site conditions — delivering reliability you can measure in tonnes, not hours.

Grades of Manganese

Selecting the right manganese grade is critical to crusher performance.
Our Manganese Crusher Liners are available in 14 %, 18 %, and 22 % manganese content — each engineered for a specific crushing application.

Manganese steel hardens as it wears, increasing strength over time (work hardening).
However, higher manganese content isn’t always the best choice — it depends on your material type, duty cycle, and crusher setup.

That’s why Rocktec’s crusher specialists assess your equipment, operating environment, and material abrasiveness before recommending the optimal grade and profile to truly optimise crusher performance.

Casting and Quality Assurance

Rocktec’s MWP Manganese Crusher Liners are cast to tight tolerances and machined for superior accuracy and fit.
Each liner undergoes a controlled heat-treatment process that enhances toughness, reliability, and consistency.

Our quality assurance includes:

  • Individual inspection on arrival at Rocktec’s New Zealand facility

  • Testing for dimensional accuracy and structural integrity

  • Full Rocktec warranty coverage

For extreme operating conditions, we enhance durability with Molybdenum and other strengthening alloys to extend service life even further.

Safety & Lifting

All Rocktec-supplied Manganese Crusher Liners are compatible with the Mangasafe™ range of lifting tools — the industry’s safer alternative to welded lifting lugs.
Mangasafe™ products can be supplied with your order to ensure a compliant, efficient, and safe change-out process.

Why Choose Rocktec for your Mining Wear Parts

  • Local New Zealand Stock – Full range of MWP manganese crusher liners held locally, ready to keep your operation moving.

  • Compatibility Across OEMs – Liners to suit most makes and models of crushers currently in operation.

  • Engineering Support – Backed by a team that understands crushing systems end-to-end — from design to wear-life optimisation.

  • Reduced Lead Times – Fast local access, consistent supply, and proven performance validated by in-field results.

  • Our Best Pricing from Day One – No inflated margins or reactive discounts — just fair, competitive pricing built on long-term trust.

  • Trusted Advisory Partnership – We don’t just sell parts; we recommend what works.

Talk to Rocktec

If you’re looking to improve liner life, product shape, or reduce cost per tonne, Rocktec’s crusher specialists can help.
We’ll review your setup and recommend Manganese Crusher Liners that deliver measurable results and long-term reliability.

→ Talk to Rocktec – Trusted Advice. Proven Performance.

Additional information

Maganese Grades

14%, 18%, 22%

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Learn More About Mining Wear Parts
Mining Wear Parts (MWP), part of the NRW Holdings Group, combines decades of foundry expertise with real mining industry experience. Specialising in high-performance wear components for crushing and screening equipment, MWP designs and engineers solutions proven in the field — delivering reliability, precision, and value. Now locally stocked and supported in New Zealand by Rocktec.