Quick Answer: Why KELI and How to Source Their Load Cells
KELI (Ningbo KELI Sensing Technology Co., Ltd.) is one of China’s largest load cell manufacturers, publicly listed on the Shenzhen Stock Exchange (stock code: 603662). Headquartered in Ningbo, Zhejiang Province, KELI produces over 10 million load cells annually and exports to more than 70 countries. Their products carry OIML R60, NTEP (for North American legal-for-trade applications), and CE certifications — making them one of the few Chinese load cell brands accepted in regulated weighing markets worldwide.
For international buyers, sourcing KELI load cells directly from China offers significant cost advantages — typically 40–60% below equivalent Western brands — but comes with challenges: language barriers, minimum order negotiations, quality verification, and export logistics. SIBXSUN bridges this gap as a sourcing partner based in the same city as KELI (Ningbo), handling procurement, pre-shipment inspection, English documentation, and consolidated export shipping.
This guide covers everything you need to know: KELI’s full product lineup, how to select the right model, what certifications to verify, realistic pricing ranges, and how to avoid common sourcing pitfalls.
KELI Company Overview: China’s Load Cell Powerhouse
Company Background
KELI Sensing Technology was founded in 1996 in Ningbo, China. Over three decades, KELI has grown from a regional sensor maker into one of the world’s top load cell producers by volume. Key milestones:
- 1996 — Founded in Ningbo, Zhejiang Province
- 2007 — Achieved OIML R60 certification for legal-for-trade weighing instruments
- 2015 — NTEP certification obtained for the North American market
- 2017 — Listed on the Shanghai Stock Exchange (SSE: 603662)
- 2020s — Expanded into digital load cells and IoT-enabled weighing modules
Scale and Market Position
KELI’s production capacity exceeds 10 million load cells per year across multiple product families. Their domestic market share in China’s industrial weighing sector is estimated at 15–20%, and they are the OEM supplier behind many private-label scale brands sold in Southeast Asia, the Middle East, Africa, and South America.
The company operates ISO 9001:2015 and ISO 14001 certified manufacturing facilities in Ningbo, with dedicated production lines for alloy steel, stainless steel, and aluminum load cells.
Key Certifications
| Certification | Scope | Significance |
|---|---|---|
| OIML R60 | Legal-for-trade weighing | Required for commercial scales in most countries |
| NTEP (select models) | North American legal-for-trade | Mandatory for commercial weighing in the US and Canada |
| CE | European market access | Conformity with EU safety and EMC directives |
| ATEX (select models) | Explosive atmospheres | Required for use in hazardous zones (Zone 1/2, Zone 21/22) |
| ISO 9001:2015 | Quality management system | Covers design, manufacturing, and testing processes |
| RoHS | Restriction of hazardous substances | Required for electronics sold in the EU |
Sourcing tip: Always request the specific certification document for the exact model and capacity you are ordering. OIML and NTEP approvals are model-specific — not all KELI load cells carry all certifications. Contact us for certification verification before placing your order.
KELI Product Line Overview
KELI manufactures a comprehensive range of load cells covering nearly every industrial weighing application. The table below summarizes their major product families.
| Series | Type | Capacity Range | Material | Primary Applications |
|---|---|---|---|---|
| SQB | Double-ended shear beam | 500 kg – 100 t | Alloy steel / Stainless steel | Truck scales, platform scales, hopper scales |
| SBS | Single-ended beam | 5 kg – 500 kg | Aluminum / Stainless steel | Bench scales, retail POS scales, counting scales |
| QS | S-type (tension & compression) | 100 kg – 20 t | Alloy steel / Stainless steel | Hanging scales, crane scales, force test rigs |
| SC | Column (compression) | 5 t – 200 t | Alloy steel / Stainless steel | Tank weighing, silo monitoring, reactor vessels |
| CCA | Canister (column variant) | 10 t – 500 t | Stainless steel | High-capacity silo/tank, truck scale foundations |
| CBFC | Single point (parallelogram) | 3 kg – 300 kg | Aluminum / Stainless steel | Packaging machines, belt scales, small platforms |
| CBA | Single point (extended platform) | 6 kg – 100 kg | Aluminum | Retail scales, price-computing scales |
| Digital | Various (with built-in A/D) | Model-dependent | Various | Smart weighing systems, IoT-enabled scales |
| Weighing Modules | Assembly with mounting hardware | Model-dependent | Steel frame + load cell | Turnkey tank/vessel weighing, process control |
Shear Beam Load Cells (SQB, SBS Series)
The SQB double-ended shear beam is KELI’s flagship product and the backbone of most industrial platform and truck scale installations worldwide. Its key advantages:
- High resistance to off-center loading — the shear beam design is inherently insensitive to the exact point of force application, which is critical for platform scales where loads are rarely placed dead center
- Easy installation — the load cell mounts horizontally between two fixed points with simple bolted connections
- Excellent long-term stability — hermetically sealed (IP68 available) for harsh industrial environments
- Wide capacity range — from 500 kg bench scales to 100-tonne truck scales
The SBS single-ended beam serves lighter-duty applications. It is a cantilever-style sensor mounted at one end, ideal for bench scales, retail scales, and counting scales where space is limited.
Browse our full selection of shear beam load cells including both KELI-sourced and SIBXSUN-branded options.
S-Type / Tension & Compression (QS Series)
The QS S-type load cell gets its name from its distinctive S-shaped body, which allows it to measure both tension (pulling) and compression (pushing) forces. This dual-mode capability makes it uniquely versatile:
- Hanging and crane scales — suspended by the top thread, with the load attached to the bottom
- Hopper and batching systems — measures the weight of material being filled or discharged
- Force measurement test rigs — material testing machines, pull-test fixtures, and fatigue testing
- Conversion kits — can be used with accessories to convert between tension and compression modes
QS models are available in capacities from 100 kg to 20 t, with threaded rod ends (M12 to M30 depending on capacity) for straightforward mechanical integration.
Column Type (SC, CCA Series)
For high-capacity applications above 10 tonnes, column (canister) load cells are the standard choice. The SC and CCA series feature:
- Compression-only design — optimized for vertical loading with self-centering cups
- Massive overload protection — typically 150–300% of rated capacity before failure
- IP68 hermetic sealing — fully welded stainless steel construction resists washdown, chemical exposure, and submersion
- Capacities up to 500 tonnes — suitable for the largest industrial weighing applications
Common uses include tank weighing systems, silo content monitoring, concrete batching plants, and large vehicle scales.
Single Point (CBFC, CBA Series)
Single point load cells are designed so that a single sensor supports an entire platform — the load cell internally compensates for off-center loading. This makes them the simplest and most cost-effective solution for:
- Packaging machines — check-weighing and fill-by-weight systems
- Small platform scales — bench scales up to 600 mm x 600 mm
- Retail and price-computing scales — the CBA series is specifically designed for commercial point-of-sale applications
- Belt conveyor scales — where the load cell must support a moving belt frame
The CBFC parallelogram design offers excellent accuracy (C3 class) in a compact package, while the CBA extends platform dimensions for larger retail applications.
Digital Load Cells
KELI’s digital load cell lineup integrates an analog-to-digital converter, microprocessor, and digital communication interface directly inside the load cell housing. Benefits include:
- Lightning and surge protection — digital signals are far more resistant to EMI/RFI interference than analog millivolt signals
- Self-diagnostics — the microprocessor can detect faults, overload conditions, and temperature excursions
- Easy multi-cell systems — digital junction boxes replace traditional summing boxes, with automatic corner correction
- Remote calibration — calibration parameters are stored digitally and can be adjusted without physical access
Digital load cells are increasingly specified for new truck scale installations and automated weighing systems where long cable runs and harsh electromagnetic environments would compromise analog signal integrity.
Weighing Modules
KELI weighing modules combine a load cell with a pre-engineered mounting assembly (top plate, base plate, stay rods, and load-introduction hardware). This turnkey approach eliminates the engineering work of designing custom mounting brackets and ensures correct load introduction into the sensing element.
How to Choose the Right KELI Load Cell Model
Selecting the correct load cell requires matching four key parameters to your application. Getting any one wrong can result in inaccurate weighing, premature failure, or safety hazards.
1. Capacity (Rated Load)
Rule of thumb: choose a rated capacity that is 1.5x to 2x your maximum expected load, divided by the number of load cells in the system.
For example, a 4-cell platform scale intended to weigh up to 3,000 kg should use load cells rated at:
(3,000 kg x 1.5) / 4 cells = 1,125 kg per cell → select the next available capacity, typically 2,000 kg (2 t)
Never operate a load cell at more than 80% of its rated capacity in continuous service. Overloading degrades accuracy and shortens fatigue life.
2. Accuracy Class
KELI load cells are classified according to OIML R60 accuracy grades:
| OIML Class | Maximum Error at Rated Load | Typical Use |
|---|---|---|
| C1 | n = 1,000 (0.10% of rated output) | Basic industrial weighing |
| C2 | n = 2,000 (0.05% of rated output) | Process control, filling systems |
| C3 | n = 3,000 (0.033% of rated output) | Legal-for-trade platform scales |
| C4 | n = 4,000 (0.025% of rated output) | Precision analytical/lab scales |
| C5 | n = 5,000 (0.020% of rated output) | High-precision reference systems |
| C6 | n = 6,000 (0.017% of rated output) | Metrology-grade applications |
For commercial (legal-for-trade) weighing, C3 is the minimum standard required in most countries. Industrial process weighing where legal certification is not required can use C1 or C2 class load cells at lower cost.
3. Environmental Conditions
| Factor | What to Consider | Recommended KELI Solution |
|---|---|---|
| Moisture/washdown | IP65 (splash-proof) vs. IP67 (brief submersion) vs. IP68 (continuous submersion) | Stainless steel models with hermetic seal for food, pharma, outdoor |
| Temperature | Standard: –10 to +40°C compensated; Extended: –30 to +70°C | Specify compensated temperature range when ordering |
| Corrosive chemicals | Acids, alkalis, saltwater, cleaning agents | Full stainless steel construction (body + cable gland) |
| Explosive atmosphere | Zones 0/1/2 (gas), Zones 20/21/22 (dust) | ATEX/IECEx certified intrinsically safe models |
| Vibration | Rotating machinery, traffic, seismic | Shear beam (SQB) preferred; add mechanical damping |
4. Application Type
| Application | Recommended Type | Recommended KELI Series |
|---|---|---|
| Truck scale / weighbridge | Double-ended shear beam | SQB (20t–50t per cell) |
| Platform / floor scale | Double-ended shear beam | SQB (500 kg–5t per cell) |
| Bench / counting scale | Single point | CBFC, CBA |
| Hanging / crane scale | S-type | QS |
| Hopper / batching | S-type or shear beam | QS or SQB |
| Tank / vessel weighing | Column or weighing module | SC, CCA |
| Packaging / check-weigher | Single point | CBFC |
| Force measurement / testing | S-type | QS |
| Retail / POS scale | Single point | CBA |
Still unsure which model fits your application? Send us your requirements and our technical team will recommend the right KELI model with a quotation within 12 hours.
Sourcing KELI Load Cells from China: Common Challenges
International buyers sourcing KELI products from China typically encounter these five challenges:
1. Communication and Language Barriers
KELI’s domestic sales team operates primarily in Chinese. Technical specifications, datasheets, and calibration certificates are often issued in Chinese. Miscommunication on critical specs — rated output, compensated temperature range, cable length, connector type — can result in receiving products that do not fit your application.
2. Minimum Order Quantities (MOQ)
When ordering directly from KELI’s factory, standard MOQs for certain models can be 50–100 pieces. This is manageable for scale manufacturers buying in bulk, but prohibitive for end users, system integrators, or small-scale importers who need 1–10 pieces.
3. Quality Verification
How do you verify that the load cells you receive match the specifications you ordered? Without an on-the-ground partner, international buyers rely entirely on trust — and counterfeit or re-labeled load cells are a documented problem in the Chinese market.
4. Logistics and Consolidation
Shipping a single load cell internationally via express courier is straightforward but expensive ($30–80 for DHL/FedEx). Combining load cells with other instrumentation products in a consolidated sea freight or air cargo shipment dramatically reduces per-unit shipping costs — but requires a local partner to receive, inspect, repack, and ship.
5. After-Sales Support
If a load cell arrives damaged, out of specification, or fails prematurely, dealing with warranty claims across international borders, time zones, and language barriers is extremely difficult without local representation.
How SIBXSUN Helps International Buyers Source KELI
As a Ningbo-based instrumentation sourcing partner, SIBXSUN addresses each of the challenges above:
Pre-Shipment Inspection and Testing
Every KELI load cell we source undergoes incoming inspection at our facility before shipment. We verify:
- Physical condition (no dents, scratches, or shipping damage)
- Model number and capacity marking match the order
- Cable length and connector type are correct
- Calibration certificate and test data are included
- Rated output and zero balance are within specification (spot-checked with our reference indicator)
Consolidated Shipping
Because SIBXSUN supplies the full spectrum of industrial instrumentation — pressure transmitters, flow meters, level sensors, and temperature instruments — you can combine KELI load cells with any other products in a single shipment. This reduces:
- Shipping costs per item (shared container/pallet space)
- Import paperwork (one commercial invoice, one packing list, one bill of lading)
- Customs brokerage fees (one entry instead of multiple)
English Documentation
We provide all documentation in English:
- Product datasheets with full specifications
- Calibration certificates with traceable reference standards
- Installation manuals and wiring diagrams
- Commercial invoices and packing lists for customs clearance
Technical Support
Our technical team speaks English and understands both the KELI product line and the application requirements of international buyers. We can help with:
- Model selection based on your application parameters
- Wiring guidance (4-wire vs. 6-wire connection, shielding)
- System design advice (how many load cells, what capacity, what indicator to use)
- Cross-referencing KELI models against competing brands (ZEMIC, HBM, Vishay)
Flexible MOQ
We stock common KELI models and can supply as few as 1 piece for standard catalog items. No minimum order requirements for sample or evaluation orders.
KELI Load Cell Pricing Guidance
Exact pricing depends on model, capacity, material, quantity, and current market conditions. The following ranges are indicative FOB Ningbo prices to give international buyers a realistic budget expectation.
| Product Type | Typical FOB Price Range (USD) | Notes |
|---|---|---|
| Single point (CBFC/CBA) 3–300 kg | $8 – $35 per piece | Aluminum body, high-volume pricing available |
| Shear beam (SBS) 5–500 kg | $12 – $45 per piece | Single-ended, aluminum or alloy steel |
| Shear beam (SQB) 500 kg – 50 t | $25 – $120 per piece | Double-ended, alloy steel standard |
| S-type (QS) 100 kg – 20 t | $20 – $90 per piece | Alloy steel, stainless steel +30–50% |
| Column (SC/CCA) 5 t – 200 t | $50 – $250 per piece | Stainless steel standard for larger capacities |
| Digital load cells | $80 – $300 per piece | Includes A/D converter and communication module |
| Weighing modules | $120 – $500 per set | Load cell + mounting assembly |
Price factors that increase cost:
- Stainless steel construction (vs. alloy steel): +30–50%
- IP68 hermetic sealing: +10–20%
- ATEX/IECEx certification: +40–80%
- NTEP-approved models: +15–30%
- Custom cable lengths (>3 m): quoted per project
- Quantities below 10 pieces: small-order surcharge may apply
Price factors that decrease cost:
- Quantities above 100 pieces: volume discounts of 10–25%
- Standard (non-custom) models with common capacities
- Aluminum construction for light-duty applications
Important: These prices are for guidance only and subject to change. Request a current quotation for the specific model and quantity you need.
KELI vs. Other Load Cell Brands
International buyers often compare KELI against other load cell manufacturers. Here is a realistic positioning:
| Factor | KELI | ZEMIC | HBM (HBK) | Vishay (VPG) |
|---|---|---|---|---|
| Origin | China (Ningbo) | China (Hanzhong) | Germany | USA/Israel |
| Price Level | $$ | $$ | $$$$ | $$$$ |
| OIML Certification | Yes (R60) | Yes (R60) | Yes (R60) | Yes (R60) |
| NTEP Certification | Select models | Select models | Extensive | Extensive |
| Product Breadth | Wide | Very wide | Wide | Moderate |
| Availability in China | Excellent | Excellent | Limited (import) | Limited (import) |
| Typical Delivery | 1–3 weeks | 1–3 weeks | 6–12 weeks | 6–12 weeks |
KELI and ZEMIC are the two dominant Chinese load cell manufacturers. Both offer comparable quality and certification coverage at similar price points. KELI tends to be stronger in shear beam and single-point categories, while ZEMIC has a broader range of specialty sensors (spoke type, pancake, miniature). Through SIBXSUN, you can source both brands and compare side by side.
Order Process: Step by Step
- Send your requirements — Model number (if known), capacity, quantity, required certifications, and delivery address. Use our contact form or WhatsApp.
- Receive quotation — We respond within 12 hours with unit pricing, lead time, and shipping options (FOB/CIF/DDP).
- Confirm and pay — Place your order via T/T bank transfer, PayPal, or Western Union. For first orders, we typically request 100% prepayment; for repeat customers, 30% deposit with balance before shipment.
- Sourcing and inspection — We procure from KELI, perform incoming inspection at our Ningbo facility, and prepare English documentation.
- Shipping — We arrange shipment via your preferred method (DHL/FedEx for small orders, air cargo or sea freight for bulk). Full tracking provided.
- After-sales support — If any issues arise after delivery, we handle communication with KELI on your behalf.
Frequently Asked Questions
Is SIBXSUN an authorized KELI distributor?
No. SIBXSUN is a sourcing partner — not an authorized distributor. We procure KELI products through established supply channels and add value through quality inspection, English documentation, technical support, and consolidated export shipping. For large-volume OEM projects requiring formal authorization letters, we recommend verifying directly with KELI and can assist with the communication.
What is the minimum order quantity for KELI load cells?
Through SIBXSUN, the MOQ is 1 piece for standard KELI catalog items. There is no minimum order requirement for evaluation or sample purposes. Volume discounts typically start at 50+ pieces.
How long does delivery take?
Standard KELI models are typically available within 7–15 business days from order confirmation. Custom specifications (non-standard capacities, special materials, extended cable lengths) may require 4–6 weeks. Express shipping (DHL/FedEx) to most countries takes an additional 3–5 business days; sea freight takes 15–35 days depending on destination.
Can I combine KELI load cells with other products in one order?
Yes — this is one of the primary advantages of sourcing through SIBXSUN. You can combine KELI load cells with pressure transmitters, flow meters, level sensors, temperature instruments, and even ZEMIC load cells in a single consolidated shipment. This significantly reduces per-unit shipping costs and simplifies your import paperwork.
How do I verify that KELI load cells are genuine?
Every genuine KELI load cell carries a laser-engraved serial number, model designation, and capacity marking on the body. SIBXSUN verifies authenticity during our incoming inspection process and provides the original KELI calibration certificate and test report with each shipment. If you have any concerns about product authenticity, we can arrange for you to verify serial numbers directly with KELI’s customer service department.
Related Guides
- Load Cell Manufacturer China: Complete Sourcing Guide — all load cell types, materials, OIML certification, OEM options, and pricing from China factories
- Top 10 Pressure Transmitter & Sensor Manufacturers in China — includes Keli and Zemic factory profiles
- Top 10 Flow Meter Manufacturers in China — Keli profile and instrumentation ecosystem overview
- Types of Pressure Transmitters: Complete Guide — if your project also requires pressure measurement
Ready to source KELI load cells from China? Contact SIBXSUN with your model requirements, and we will respond with a detailed quotation within 12 hours. Browse our full load cell catalog to explore all available options.

