Best way to crush construction waste 90 tph with impact crusher

1. Why Impact Crusher Works for Construction Waste
Construction waste typically contains concrete blocks, bricks, tiles, asphalt, and sometimes rebar or wood. When looking for the best way to crush construction waste 90 tph with impact crusher, the impact crusher is widely preferred because it handles mixed materials better than jaw or cone crushers. The high-speed rotor and blow bars fracture concrete along natural cracks, producing a cubical product suitable for road base or recycled aggregate. Additionally, impact crushers are more forgiving when tramp metal (rebar, nails) enters the chamber – most modern units feature a hydraulic opening system to eject uncrushables. For recycling sites in Nigeria and Kenya, where construction waste often contains 10-20% steel reinforcement, an impact crusher (Type IC-90) delivers consistent performance at 90 tph. Actual output depends on feed composition, moisture, and rebar content. Always pre-remove large steel sections with a magnetic separator or manual sorting.

2. Feed Preparation and Magnetic Separation
To achieve the best way to crush construction waste 90 tph with impact crusher, feed preparation is essential. First, remove oversized material (above 600mm) using a primary jaw crusher or a hydraulic breaker – impact crushers typically accept 400-500mm max feed. Second, install a strong overhead magnet (Type M-90) above the discharge conveyor to pull out loose rebar and wire. This protects the blow bars and aprons from excessive wear. Third, spray water at the feed point if the waste is dry and dusty – this reduces airborne silica and helps prevent dust explosions. Many Kenyan contractors have successfully run 90 tph for months by feeding a pre-screened 0-400mm fraction into the impact crusher. *Production data are based on typical C&D waste (density 1.6-1.8 t/m³). For latest parameters, contact our 24/7 support.*

3. Rotor Speed and Apron Settings for 90 tph
A critical factor in the best way to crush construction waste 90 tph with impact crusher is tuning the crusher for the material. Construction waste is softer than natural rock (compressive strength 20-40 MPa vs. 150+ MPa for granite). Therefore, reduce rotor tip speed to 35-40 m/s (instead of 50-55 m/s for hard rock). Lower speed generates less dust and reduces blow bar wear while still achieving the required reduction. Set the first apron (primary impact zone) with a gap of 60-80mm, and the second apron at 20-30mm. For producing 0-40mm recycled base course, a single impact crusher in open circuit often suffices. For finer products (0-20mm), use a closed circuit with a vibrating screen returning oversize. Machine efficiency and cost-effectiveness are our design goals, but actual settings depend on desired product specification.

4. Blow Bar Selection and Wear Management
Blow bars are the most consumed wear part. For the best way to crush construction waste 90 tph with impact crusher, choose high-chrome white iron (18-22% Cr) blow bars – they offer high resistance to abrasive wear from concrete and brick. Avoid manganese steel blow bars for C&D waste, as they work-harden but wear faster on abrasive materials. Inspect blow bars daily; replace them when wear reaches 40-50% of original thickness. Rotate blow bars (turn them around) halfway through their life to double service life. OCP Mechanical Company’s Type IC-90 impact crusher features hydraulic hood opening and rotor locking – allowing a two-person crew to change all four blow bars in under 2 hours. Wear life varies with steel content and feed abrasiveness; always keep a spare set on site.

5. Why OCP Impact Crushers Are Cost-Effective for Africa
With over 40 years of experience, OCP Mechanical Company designs impact crushers specifically for recycling applications. As a direct manufacturer (no middlemen), we offer factory-direct pricing – significantly lower than European or Turkish brands for the same capacity. For customers in Nigeria and Kenya, we stock common spare parts (blow bars, aprons, rotor tips) in our Lagos and Mombasa warehouses for fast delivery. Our Type IC-90 impact crusher is widely used for crushing 90 tph of construction waste into valuable recycled aggregates. We also provide free consulting on magnetic separator placement, dust suppression systems, and closed-circuit configurations. Prices shown are for reference only – final quotes depend on crusher configuration, motor voltage, and shipping. OCP reserves the right to update technical data without prior notice.

Need to set up a 90 tph construction waste recycling line? Our customer service team is online 24/7 – click the chat button for free quoting, blow bar recommendations, or a complete plant layout. Let OCP help you turn waste into profit in Nigeria or Kenya.