JWps Series Light Crusher

With combinations of rotor diameter (Φ300–800 mm), multiple blade configurations (6–18 rotary blades, 2–6 stationary blades), and output range (200–1200 kg/h), the JWPS series is ideal for:

Plastic recycling – Soft plastics (LDPE film, PP woven bags, PE bottles), hard plastics (ABS, PC, PS scrap), and purgings.
*Example: A recycler in Malaysia uses a JWPS-800 (45 kW, Φ600 rotor) for pre-shredding post-consumer HDPE containers with a 12 mm screen, achieving 500 kg/h – blade life exceeds 600 hours between rotations.*

Wood & biomass – Wood chips, pallet waste, veneer scrap, agricultural straw.
*Example: A biomass pellet plant in Vietnam installed a JWPS-1000 (75 kW, 14 rotary blades) to reduce rubberwood offcuts from 50 mm to 8–10 mm chips, achieving 780 kg/h actual output – close to the nominal 800 kg/h.*

E-waste – Circuit boards (without components), ABS housings, cable insulation.
*Example: An e-waste processor in Thailand uses a JWPS-560 (15 kW) for pre-granulation of clean, dry cables with a 6 mm screen, achieving 280 kg/h.*

Food & herb processing – Dried spices, grain husks, medicinal roots (oilfree, low moisture).
*Example: A spice exporter in Morocco uses a JWPS-450 for dried chili stems and seeds with a 3 mm screen, achieving 180 kg/h – close to the nominal 200 kg/h.*

Real reason users choose JWPS: The stepped rotor design (especially on JWPS1000/1200, with 10–18 blades) provides strong cutting force, while the large swing diameter (Φ700–800 mm) reduces material bounce – meaning higher net output per kWh.

Based on actual field data and our specifications, the JWPS series stands out for:

Smarter blade geometry, lower energy consumption
Standard models (450–800) come with 6 rotary blades + 2 or 4 stationary blades – suitable for medium-duty work.
Heavy-duty models (1000–1200) offer selectable blade counts (10/14/18 rotary, 4/6 stationary). This lets you adjust cutting density: fewer blades for high-throughput coarse crushing, more blades for fine, uniform particle size.

Larger rotor diameter relative to feed opening size
Example ratio: JWPS-700 has a 700×700 mm feed opening but a Φ500 rotor – the high rotor inertia helps crush bulky material without jamming, requiring only 37 kW. Competitors typically need 45 kW for the same output.

“Light-duty” crusher with industrial-duty duty cycle
The main shaft is forged from 40Cr steel, heat-treated and dynamically balanced (ISO 1940 G2.5). Bearings are SKF or FAG.
Result: continuous 8-hour operation at 90% load is standard, not exceptional.

Easy-clean, easy-blade-change design
All models feature a full-opening hopper and a hinged screen cradle. A two-person team can change blades in just 20 minutes – no rotor removal required.

We follow documented ISO 9001 procedures. Every JWPS crusher must pass four mandatory stages before shipment:

Stage 1 – Raw material & component verification
Rotor steel – Spectrometer check for 40Cr composition.
Blades – Hardness test (rotary blades HRC 52–56, stationary blades HRC 48–52). Supplier batch traceable.
Welded frame – Penetrant inspection on all bearing housing and motor base welds.

Stage 2 – Dynamic balancing (critical for rotor life)
Each rotor assembly is balanced on a hard-bearing balancer at 120% of operating speed. Residual unbalance ≤ 2.5 g·mm/kg (ISO G2.5).
Without this, bearings would fail within 3 months – we guarantee 8,000 hours bearing life.

Stage 3 – No-load run test (4 hours)
Run the crusher without material. Measure:
Bearing housing vibration velocity ≤ 2.8 mm/s
Noise at 1 m ≤ 82 dB(A) (housing closed)
Motor current – stable, no spikes
Bearing temperature rise ≤ ambient +40°C

Stage 4 – Load test with material similar to customer’s actual feed
We use standard test materials: 3 mm thick HDPE sheet (for plastic applications) and 20 mm dry pine (for wood).
Output must reach ≥95% of spec sheet value.
Particle size distribution checked via sieve shaker.
Energy consumption recorded – must be within ±5% of calculated value. 
Real example: A JWPS-1200 (110 kW, 18 blades) destined for a French plastic film recycler was load-tested with 50 micron LDPE stretch film. It achieved 1100 kg/h – 8% above spec. Because power draw remained below 98% of motor rating, we passed it and shipped.

Q1 – Can it crush metal (e.g., aluminum cans, thin steel sheets)?
A – Only non-ferrous, thin-walled items like aluminum beverage cans or aluminum foil. Do not feed steel, screws, or heavy castings – they will damage blades and screens. For light cans, use a 10–12 mm screen and reduce feed rate. An optional magnetic separator in the feed hopper is available.

Q2 – How often do I need to replace or rotate the blades?
A – Depends on material abrasiveness:
Soft plastics (PE film): 400–600 hours
Hard plastics (ABS, PC): 150–250 hours
Wood chips: 200–300 hours
Aluminum cans: 100–150 hours
All blades are reversible (double-edged). Rotate blades when the gap between rotary and stationary blades exceeds 1.5 mm. A complete spare blade set costs about 15% of the crusher price.

Q3 – What output particle size can I achieve?
A – Standard screen perforations from 4 mm to 40 mm round holes. For uniform fine powder (below 2 mm), consider adding our optional granulator after the crusher. Example: JWPS-800 with a 6 mm screen processing ABS scrap – 90% of output between 5–8 mm.

Q4 – My plant has 60 Hz power. Can the motor be adapted?
A – Yes – we supply motors rated for 50/60 Hz (380–415V / 440–480V). Rotor speed scales accordingly (e.g., 480 rpm at 50 Hz to 576 rpm at 60 Hz). Output will increase by about 10–15%, but blade wear will also accelerate. We recommend a slight reduction in feed rate.

Q5 – Do you provide dust extraction ports?
A – All JWPS-700 and above models have a Ø150 mm dust port on the discharge chute. For JWPS-450/560, an adapter is optional. For fibrous dust, an air velocity of 25–30 m/s is recommended.

Q6 – How do I avoid motor overload?
A – The control panel includes an overload relay with adjustable current setpoint. Additionally, a VFD option (standard on JWPS-1000/1200, optional on others) provides soft-start and torque limiting. For sticky materials (e.g., wet film), reduce feed rate or increase screen hole size.