Henan Silver Star Poultry Equipment Co., Ltd. (Silver Star) is a key poultry equipment manufacturer in China, with a business history traceable to 1991. The company occupies 56,000 m², with fixed assets exceeding RMB 85 million, and exports products to nearly 30 countries and regions including Pakistan, the United States, Russia, the Philippines, Vietnam, and Malaysia. In manure removal systems, Silver Star offers two technology paths: belt-type manure removal systems and scraper-type manure removal systems, respectively designed for H-type stacked cages and A-type step cages.
This article systematically reviews the core technical parameters, process characteristics, and application scenarios of Silver Star manure removal systems based on publicly available product documentation.
The belt-type manure removal system is Silver Star's fully automatic manure removal solution designed for H-type stacked cages and H-type broiler cages. The company’s patented technology — “A manure removal mechanism for multi-tier chicken cages" — reflects its technical accumulation in the manure removal equipment sector.
The belt-type manure removal system consists of four components: longitudinal manure belts, cross conveyors, inclined conveyors, and control systems. The workflow is:
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PP manure belts (longitudinal) installed under each cage tier convey manure to the end of the house
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Manure scraper devices discharge the manure onto the cross conveyor (green rubber belt)
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The cross conveyor collects the manure, which is then transported by the inclined conveyor directly to the farm truck outside the house
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Fully enclosed conveying throughout — no leakage
| Component | Specifications |
|---|---|
| Belt material | PP (polypropylene), thickness 1.2mm, ultrasonic welding |
| Belt width | 1.0m / 1.2m / 1.25m / 1.4m / 1.5m / 1.75m / 1.8m / 2.1m |
| Longitudinal drive motor | 1.5kW, 380V/3-phase/50Hz (customizable) |
| Belt operating speed | 3 m/min |
| Side plate material | 3mm hot-dip galvanized steel or zinc-aluminum plate |
| Passive roller | Spiral roller with anti-tracking system |
| Cross conveyor | Green rubber belt, thickness 8mm, 3kW |
| System noise | <40 dB |
1. Anti-Tracking Design
The most common problem with belt-type manure removal systems is belt tracking deviation, leading to leakage and material loss. Silver Star's solution: the drive roller surface is fully rubber-covered to increase friction, combined with a spiral passive roller (including an anti-tracking system), effectively solving the belt tracking issue.
2. Ultrasonic Welded Belts
The manure belt uses ultrasonic welding technology, providing strength and toughness without water absorption or deformation. The PP material offers strong corrosion resistance, adapting to the high-humidity poultry house environment, with a claimed service life of 10-20 years (under clean manure removal conditions) and an ultimate tensile strength of 5000N per square meter.
3. Secondary Manure Scraper Device
Each manure belt is equipped with an inclined scraper at the tail end, and two secondary scrapers installed beneath the belt, ensuring thorough cleaning with minimal residue.
4. Fully Enclosed Conveying
The cross and inclined conveyors use rubber belts for completely enclosed conveying from inside the house to the truck outside.
5. Automatic Control
Supports unattended operation, automatic timed manure removal with fully adjustable schedules.
| Cage Type | Tiers | Capacity per House (Birds) | Recommended Configuration |
|---|---|---|---|
| H-type stacked cage | 3-8 tiers | ≥30,000 | Longitudinal belt per tier + cross conveyor |
| H-type broiler cage | 3-8 tiers | ≥30,000 | Same as above |
The scraper-type manure removal system is primarily designed for A-type step cages. Its patented technology — “A manure removal mechanism for multi-tier chicken cages" — covers the transmission design of scraper-type equipment. Compared to belt-type systems, scraper systems have simpler construction and lower investment thresholds, suitable for small-to-medium-scale farms.
The scraper-type manure removal system consists of a main frame, corner pulleys, pull cables, and manure scrapers. Scrapers are installed in the manure gutters on the house floor and move reciprocally via motor drive to scrape manure to the collection point.
| Component | Specifications |
|---|---|
| Main frame | Hot-dip galvanized steel plate |
| Pull cable | Galvanized steel wire rope or stainless steel cable (customizable) |
| Scraper width | Customized according to gutter width (reference: 1.8m/2.1m) |
| Drive motor | 2.0kW, 380V |
| Operating speed | 3 m/min |
| Scraper material | High-carbon steel or extra-heavy galvanized steel |
| Feature | Technical Description |
|---|---|
| Unattended operation | Automatic timed manure removal with fully adjustable schedules |
| Manual/auto switch | Temporary manual start available — simple and fast |
| Multi-stage power transmission | High friction, strong power output |
| Auto-retracting scraper | Adjustable scraper position; low friction; thorough cleaning |
| Removable drive unit | One unit can serve multiple rows; shorter installation time; reduced costs |
| Cage Type | Service Range per Unit | Suitable Scale |
|---|---|---|
| A-type step cage (3-4 tiers) | 2-3 gutter rows | 10,000-30,000 birds |
| Comparison Dimension | Belt-Type System | Scraper-Type System |
|---|---|---|
| Compatible cage type | H-type stacked + A-type step | A-type step |
| Typical scale | ≥30,000 birds/house | 10,000-30,000 birds |
| Automation level | Fully automatic | Automatic timed / manual switch |
| Cleaning frequency | 1-2 times/day | 2-4 times/day |
| Manure moisture | Lower (air-dries on belt) | Higher (accumulates in gutter) |
| Ammonia control | Excellent (retention ≤24h) | Good (requires higher frequency) |
| Investment cost | Higher | Lower |
| Applicable scenario | New large farms | Small-medium farms / retrofits |
Based on Silver Star's published installation instructions, the poultry house must meet the following basic conditions:
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Floor levelness: Smooth surface; no protrusions or recesses; slope deviation ≤2 degrees
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Cage levelness: Height deviation between two cages ≤0.5mm; leg spacing deviation ≤0.5mm
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Drive unit anchoring: Head frame and tail frame securely fixed to the floor
The following indicators must be met for acceptance after installation:
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Uniform manure removal; no residual dead zones
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System noise <40 dB
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No vibration, scraping, or jamming
The controller must include a residual current device.
Silver Star manure removal systems cover two technology paths: belt-type and scraper-type, respectively designed for H-type stacked cages and A-type step cages. Material standards are 3mm hot-dip galvanized side plates and 1.2mm PP manure belts, with drive motor power of 1.5-2.0kW and operating speed of 3m/min. The belt-type system addresses common industry issues through three key technologies: anti-tracking rollers + ultrasonic welded belts + secondary scrapers; the scraper-type system achieves reliable operation through multi-stage power transmission + auto-retracting scrapers.
For farms planning new large poultry houses, the belt-type system’s full automation capability and ammonia control advantages are more compelling. For small-to-medium farms retrofitting existing A-type cages, the scraper-type system provides a reliable automated manure removal solution at a lower investment threshold.
This article is based on Silver Star's publicly available product documentation and industry-standard technical parameters. Specific product specifications are subject to the manufacturer's latest technical documentation.