GWM400 Silo & Tank Weighing Module
The GWM400 is an exceptionally low-profile, high-safety compression weigh module mounting kit engineered to transform silos, batching tanks, hoppers, and mixers into reliable, high-precision weighing systems. Built with an exceptionally rugged, moisture-proof, nickel-plated alloy steel housing (with premium stainless steel customization options), the GWM400 incorporates a central spoke-type (shear web) load cell. This specific spoke sensor core offers a vast capacity range from 0.5 Ton up to 100 Tons, characterized by supreme static precision (±0.03% to 0.05% F.S.) and extreme immunity to lateral mechanical shocks. For maximum industrial security, each module is equipped with dual side limiting bolts to prevent hazardous structural tipping, thermal expansion friction, or strong wind uplift.
Low-Profile & Anti-Tipping Bolts
An exceptionally low mechanical height keeps the center of gravity low. Dual-sided limiting bolts protect against structural tipping, wind uplift, and heavy thermal expansions.
Spoke Load Cell Engine
Incorporates an extremely rigid spoke (shear-web) sensor core. Offers superior side-load deflection resistance, ensuring absolute stability under constant mixer agitation.
Moisture-Proof Alloy Steel
Crafted from rugged alloy steel with a professional nickel-plated surface and epoxy sealing, achieving excellent moisture-proof and outdoor corrosion-resistant performance.
0.5t to 100t Scalability
Wide measurement spectrum. Seamlessly scales from light batching hoppers and chemical blending mixers to massive agricultural feed silos and outdoor storage tanks.
One-Stop Process Weighing Solutions
Maximize silo and tank automation with our pre-tested, industrial-grade hardware bundles:
01
PLC/DCS Automation Interface
3x or 4x GWM400 Modules + GT202 Transmitter: Converts raw millivolt signals to stable 4-20mA, 0-10V, or Modbus signals. Filters motor noise for clean long-distance PLC logging.
02
Local Blending & Level Display
GWM400 Modules + GSI307/GSI309 Controller: Real-time tank weight level display with built-in 2-way limit relays, automated peak-hold controls, and RS485 communication.
03
Multi-Silo Central Monitoring
GWM400 Modules + Multi-Channel Junction Box: Synchronizes and balances multiple support pillars of a giant outdoor farm storage silo or hopper for even weight tracking.
04
Hazardous Zone Safety Setup
Explosion-Proof Modules + Intrinsic Barrier: Fully certified explosion-proof GWM400 weighing systems designed for chemical, pharmaceutical, and gas-filled plant environments.
Technical Specifications
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Technical Parameters
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Specification Performance (GWM400 Weigh Module)
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Rated Capacity
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0.5, 1, 2, 3, 5, 7.5, 10, 15, 20, 25, 30, 50, 100 (Tons)
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Comprehensive Error
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±0.03% ~ 0.05% F.S. (Full Scale)
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Rated Output
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2.0 ± 0.05 mV/V
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Zero Balance
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± 1.0% F.S.
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Input / Output Resistance
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380 ± 10 Ω (or 750 ± 15 Ω) / 350 ± 3 Ω (or 700 ± 5 Ω)
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Safe Overload / Ultimate Overload
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150% F.S. / 200% F.S.
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Protection Class
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IP67 default (IP68 optional with hermetic laser-welded sealing)
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Excitation Voltage
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9 ~ 12 VDC (Recommended), Max. 15 VDC
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Standard Cable Details
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4-Wire High-Density Braided Shielded Cable (Length customizable)
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Structural Housing Material
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Premium Nickel-Plated Alloy Steel (Stainless steel option available)
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Operating Temperature Scope
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-20°C ~ +60°C (With optional high-temperature protection up to +150°C)
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Mechanical Dimensions & Sizes
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Weigh Module Capacity
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L (Length, mm)
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L1 (Hole Spacing, mm)
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A (Width, mm)
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A1 (Hole Spacing, mm)
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H (Height, mm)
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H1 (Base Thk, mm)
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φD (Bolt Dia, mm)
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0.5t ~ 7t (Low Capacity)
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160
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135
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115
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90
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100
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16
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φ14
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10t ~ 25t (Medium Capacity)
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260
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210
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200
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150
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160
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20
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φ20
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30t ~ 50t (High Capacity)
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310
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250
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240
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180
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190
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25
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φ24
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100t (Super Heavy Capacity)
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400
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340
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340
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280
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319
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35
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φ32
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⚙️ Mechanical Integration & Installation: To install the GWM400, place modules beneath each supporting pillar of the silo or tank. Ensure the foundation plate is level. Adjust the double side limiting bolts on each side to allow a clearance gap of 2-3mm, which accommodates minor structural shifting and thermal expansions while preventing overturning or wind lifting. Ensure the center force load cell pin is vertically concentrated.
Core Industry Applications
Outdoor Storage Silos & Towers
Enables accurate weight monitoring for bulk grains, cement, protein powders, and feed storage structure silos under heavy environmental wind-loads.
Chemical Blending & Mixer Tanks
Excellent resistance to motor vibrations and horizontal mechanical torque in raw materials mixing, blending, and chemical reactor vessel processes.
Industrial Batching Hopper Scales
Ensures 0.03% high precision weight metrics for multi-material automatic batching hoppers, concrete mixers, and aggregate processing plants.
Process Level Control Systems
Replaces failure-prone non-contact radar level sensors with highly precise, drift-free gravimetric mass measuring modules inside industrial factories.
Bespoke Industrial Customization Services
We support high-level customized options for challenging chemical and factory processing lines:
Full Stainless Steel (SUS304 / SUS316) Housing optional
High-Temperature Thermal Shields (up to 150°C)
Special Communication Interfaces (Modbus RTU / Profibus)
Custom Foundation Plate Sizes & Mounting Holes
Extra Shielded Cable Lengths (up to 100 meters)
Frequently Asked Questions
1. Why are dual side limiting bolts critical on GWM400 modules?
Outdoor silos and liquid mixing tanks are highly vulnerable to wind forces, thermal expansion shifting, and heavy motor torque. The GWM400's dual limiting bolts on both sides restrain horizontal forces, preventing the silo from overturning or tipping while allowing tiny expansions to resolve, guaranteeing safety and structural integrity.
2. Can the GWM400 withstand high-vibration environments like mixer tanks?
Yes. Unlike delicate shear-beam modules, the GWM400 incorporates a central spoke-type (shear-web) sensor core, which naturally possesses massive structural rigidity and high deflection resistance. This design ensures that continuous motor rotation and dynamic blending vibrations will not affect accuracy or damage the cells.
3. How many GWM400 modules are typically required for a silo or blending vessel?
Generally, the number of weighing modules matches the number of structural supports/pillars. A standard 3-legged tank requires 3 modules, while a large 4-legged industrial silo requires 4. These modules are connected to a central summing junction box to deliver an aggregated weight display.
4. Do you offer explosion-proof options for chemical or pharmaceutical industries?
Yes. Galoce provides comprehensive explosion-proof customizations for hazardous atmospheres. We equip GWM400 modules with intrinsic safety barrier circuits, explosion-proof summing junction boxes, and safety indicators, fully certified for chemical plants and volatile bulk material storage.
5. What is the difference between nickel-plated alloy steel and stainless steel versions?
Standard nickel-plated alloy steel GWM400 offers high mechanical strength and excellent moisture-proof performance for typical outdoor feed mills and cement batching. For highly corrosive chemical reactors, food-grade milk silos, or washdown pharmaceutical mixers, we recommend customizing the full SUS304/SUS316 stainless steel housing with laser welding.
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