Jaw crusher Essa® JC series

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Overview
Laboratory jaw and rolls crushers from the FLSmidth Essa® and Herzog ranges provide controlled coarse and fine crushing for sample preparation, pilot-plant and high-volume laboratory workflows. Units are available in multiple sizes and configurations to match feed size, reduction ratio and throughput requirements while supporting safe, ducted laboratory operation.

Key benefits

• Safe laboratory integration: dust-extraction spigots, full drive guards and optional safety feed hoppers minimise operator exposure.
• Range flexibility: coarse primary jaw crushers, fine jaw crushers and contra-rotating rolls crushers to suit varied feed sizes and throughputs.
• Wear-resistant components: BISALLOY® and other wear steels, reversible/interchangeable jaw plates and long-life bearings for extended service life.
• Low-maintenance design: single-toggle jaw mechanisms, accessible grease points and removable parts reduce downtime and simplify servicing.
• Consistent product sizing: contra-rotating rolls and fine-jaw configurations deliver tight size distributions with minimal fines.
• Throughput options: from laboratory low-volume (~140 kg/h) to large-sample throughput (~15,000 kg/h) across the model range.

Models

• Essa® JC1000 — Entry medium-duty jaw crusher. Feed up to ~85 mm; typical product ~6 mm; throughput ~250 kg/h. BISALLOY® jaw plates; single-toggle jaw gap adjustment.
• Essa® JC2000 — Primary crusher for exploration and grade control. Feed up to ~110 mm; product ~6 mm; throughput ~500 kg/h. Floor or bench options.
• Essa® JC3000 — Heavy-duty primary crusher. Feed up to ~170 mm; product ~24 mm; throughput ~3,000 kg/h. Suited to hard ores and larger lumps.
• Essa® JC5000 — Largest Essa® primary crusher. Feed up to ~250 mm; product ~30 mm; throughput up to ~15,000 kg/h. For sampling stations and pilot plants.
• Essa® JC1250 — Fine jaw crusher for high-volume labs. Max feed ~80 mm; reduction ratio up to 40:1; product down to ~2 mm; throughput up to ~140 kg/h. 7.5 kW motor option and optional safety hopper.
• Essa® JC2501 — Heavy-duty fine jaw for exploration/sample reduction. Max feed ~110 mm; high reduction (~50:1) to ~2 mm; throughput ~180 kg/h.
• Herzog HSC550 — Fine crusher for hard/brittle materials. Max feed ~50 mm; selectable gap 0–20 mm; final fineness <4 mm; features locking jaw, width display and safety funnel.
• Herzog HSC590 — Robust fine crusher. Max feed ~90 mm; selectable gap 0–30 mm; final fineness <4 mm; safety feed hopper, brake motor and removable crushing arm; optional 5 L drawer.
• Essa® RC2000 — Mid-range rolls crusher. Max feed ~30 mm; contra-rotating rolls for tight size distribution; floor-stand with aluminium sample draw and dust spigot.
• Essa® RC3000 — Higher-power rolls crusher. Max feed ~40 mm; available floor or bench mount; suitable for continuous use with mesh guarding and dust extraction.

Applications

• Primary and secondary sample crushing for exploration, grade-control and laboratory analysis.
• Pre-crushing for analytical, metallurgical and geochemical workflows.
• High-throughput laboratory processing and pilot-plant sampling stations.
• Crushing of ore, core, drill cuttings, clinker, ceramics and similar particulate materials.

Technical specifications

• Brand: FLSmidth (Essa® and Herzog ranges)
• Crusher types: coarse jaw crushers, fine jaw crushers, rolls crushers (contra-rotating)
• Feed size examples: JC1000 ~85 mm; JC2000 ~110 mm; JC3000 ~170 mm; JC5000 ~250 mm; JC1250 ~80 mm; JC2501 ~110 mm; HSC550 ~50 mm; HSC590 ~90 mm; RC2000 ~30 mm; RC3000 ~40 mm.
• Throughput examples: ~140 kg/h (JC1250) up to ~15,000 kg/h (JC5000); JC1000 ~250 kg/h; JC2000 ~500 kg/h; JC3000 ~3,000 kg/h; JC2501 ~180 kg/h.
• Product size examples: fine models down to ~2 mm (JC1250, JC2501); typical primary product sizes 6 mm (JC1000/JC2000); JC3000 ~24 mm; JC5000 ~30 mm; Herzog units <4 mm achievable.
• Construction: BISALLOY® and other wear steels, reversible/interchangeable jaw plates, robust frames, long-life bearings.
• Drive & safety: single-toggle jaws, full drive guarding, brake motors on selected models, optional safety hoppers and dust-extraction spigots for laboratory ducting.
• Installation: upright floor-stand or low-profile bench-mount options for continuous or automated laboratory use.
• Maintenance: accessible grease points, removable arms/drawers for cleaning and simple jaw replacement to minimise downtime.