Cast iron test/Commercial weights of class M
Adjusting, testing and calibrating instrument for commercial scales, elevetor
Adjustment, test and calibration instrument for coarse scales and for quality assurance for scales with a number of steps < 3.000. Weights for use in conjunction with:
- Commercial scales and coarse scales.
- For scale learning and training.
- Load tests in elevator, crane and vehicle construction.
All M classes depending on accuracy requirements as load authorities for tension, compression and torsion determinations.
500kg 1000kg iron test weight block for truck scales, big weighing scales
Marking/Labelling according to OIML R111:2004
Weights from 1g to 500g are marked with their nominal value and the unit symbol "g" (e.g. "10 g").
Weights from 1kg and larger are marked with their nominal value and the unit symbol "kg" (e.g. "1 kg").
Additional marking of the class:
- Class M1: "M" or "M1"
- Class M2: "M2"
- Customized Marking
are applied to the upper side.
The manufacturer's mark may be applied to rectangular block weights of class M1 and to all weights of class M2 and M3.
To distinguish them, multiple weights of the same denomination in set compositions are marked by dots or stars.
Large counterweight weight, 5000kg weight block is a popular measurement unit. Its specifications range from 5KG to 5000KG. It can be used in many industries such as machinery and metallurgy. Its main characteristics are wear resistance, high accuracy, and resistance to corrosion.
In addition, a maximum of 5 user features (characters, letters and numbers) can be applied as a data matrix to clearly
identify the weights as test or measuring equipment. These user features can be defined by the customer when
ordering.
5000kg (5 tons) weights or counterweights are large-scale heavy-duty weighing tools or balancing components, mainly used in industrial, scientific research, metrology and testing scenarios with extremely high requirements for accuracy and stability. The following are its core application areas and specific scenario descriptions:
### **I. Industrial and metrology testing fields**
#### 1. **Calibration of large scales (core use)**
- **Application scenarios**:
- Calibrate **floor scales (truck scales)**, track scales, large crane scales and other weighing equipment. For example: The scales in the logistics park need to regularly verify the weighing accuracy with 5 tons of weights (the error must be controlled within ±0.1%).
- Calibrate **industrial weighing sensors** (such as sensors installed on cranes and conveyor scales) to ensure the measurement accuracy of bulk goods (such as ore and building materials).
- **Operation method**:
- Place the weights on the scales by forklift or crane, compare the displayed value with the nominal value of the weights, and adjust the scale parameters.
- Some scenarios require a combination of multiple weights (such as 2 2.5-ton weights) to achieve calibration with a larger weighing range.
#### 2. **Heavy equipment counterweight and stability test**
- **Application scenarios**:
- **Construction machinery**: When commissioning cranes and tower cranes, counterweights are needed to simulate loads and test the equipment's anti-overturning ability and structural strength (for example: a 5-ton counterweight is required at the balance end of the crane boom to balance the hoisting weight).
- **Shipbuilding and marine engineering**: Used to simulate cargo weight, adjust the ship's center of gravity, and test navigation stability in shipbuilding; used as a fixed counterweight during installation of offshore platform equipment.
- **Elevator commissioning**: In the installation of traction elevators, counterweights are used to simulate rated loads (such as 5-ton cargo elevators) to test motor power, braking performance, and wire rope stress.
### **Second, scientific research and laboratory scenarios**
#### 1. **Material mechanics experiment**
- **Application scenarios**:
- When testing the compressive and tensile strength of metal plates, bridge components, etc. in the laboratory, a constant load (such as 5 tons of pressure) is applied through weights or counterweights to observe the deformation or destruction process of the material.
- For example: a car crash test bench uses a counterweight to simulate the weight of the car body and test the airbag triggering mechanism.
#### 2. **Aerospace and automotive industry**
- **Application scenarios**:
- **Aircraft component testing**: Simulate the static load borne by aircraft engines and landing gear (such as a 5-ton counterweight pressed on the landing gear to test durability).
- **Automobile chassis adjustment**: In the suspension system test, a counterweight is used to simulate the weight of the vehicle cargo to optimize the shock absorption effect and handling performance.
### **Three, customized applications for special industries**
#### 1. **Nuclear energy and high-energy physics experiments**
- **Application scenarios**:
- In particle accelerators and nuclear reactor equipment, as a counterweight for shielding materials (such as lead counterweights), while ensuring the stability of the center of gravity of the equipment (need to be combined with radiation protection design).
#### 2. **Amusement facility safety inspection**
- **Application scenarios**:
- When accepting amusement facilities such as roller coasters and large bungee jumping machines, counterweights are required to simulate the weight of a full load of passengers (such as 5 tons) to test the track load-bearing, braking system reliability and structural safety.
### **Fourth, technical features of weights and counterweights**
| **Type** | **Material** | **Accuracy level** | **Key points of design** | **Typical scenarios** |
|------------|----------------|--------------------|----------------------------------|----------------------------|
| **Standard weights** | Cast iron, stainless steel | OIML M1 grade (industrial use) | Smooth surface, with calibration certificate, corrosion-resistant | Scale calibration, metrology testing |
| **Counterweights** | Cast iron, steel, concrete | No strict accuracy requirements | Strong structure, splicable combination, with lifting ring design | Equipment counterweight, mechanical testing |
### **Five, precautions for use**
1. **Safe handling**: Professional lifting equipment (such as forklifts and cranes) must be used to avoid the risk of falling due to manual handling.
2. **Storage environment**: Weights must be stored in a dry environment without corrosive gases, and regularly cleaned and maintained to maintain accuracy; counterweights must be moisture-proof and impact-proof.
3. **Compliance**: Weights used for metrological calibration need to be regularly verified by legal metrological institutions (e.g. once a year) to ensure compliance with national metrological standards.
### **Summary**
5000kg weights and counterweights are indispensable tools in industrial production, scientific research and safety testing. Their core value lies in **providing a stable and traceable quality benchmark** or **simulating real load scenarios** to ensure that equipment performance, measurement results and system safety meet standards. According to the specific purpose, it is necessary to select the appropriate material, accuracy level and structural design, and strictly follow the operating specifications to ensure the safety of personnel and equipment.
We produce and supply all kinds of the below test weights. Besides, we also supply slotted weights, hook weights and customizes weights. For example, we exported OIML e1 e2 f1 f2 m1 stainless steel calibration weights and m1 m2 cast iron weights to many country.
Please contact me if you are interested in our products.
| Class |
Value |
Milogram weight-standard test calibration weight |
Gram weight-standard test calibration weight |
Kilogram weight-standard test calibration weight |
| E1 |
1mg-20kg |
1mg 2mg 2mg* 5mg 10mg 20mg 20mg* 50mg 100mg 200mg 200mg* 500mg |
1g 2g 2g* 5g 10g 20g 20g* 50g 100g 200g 200g* 500g |
1kg 2kg 2kg* 5kg 10kg 20kg |
| E2 |
1mg-50kg |
1mg 2mg 2mg* 5mg 10mg 20mg 20mg* 50mg 100mg 200mg 200mg* 500mg |
1g 2g 2g* 5g 10g 20g 20g* 50g 100g 200g 200g* 500g |
1kg 2kg 2kg* 5kg 10kg 20kg |
| F1 |
1mg-1000kg |
1mg 2mg 2mg* 5mg 10mg 20mg 20mg* 50mg 100mg 200mg 200mg* 500mg |
1g 2g 2g* 5g 10g 20g 20g* 50g 100g 200g 200g* 500g |
1kg 2kg 2kg* 5kg 10kg 20kg 25kg 50kg 100kg 200kg 500kg 1000kg |
| F2 |
1mg-1000kg |
1mg 2mg 2mg* 5mg 10mg 20mg 20mg* 50mg 100mg 200mg 200mg* 500mg |
1g 2g 2g* 5g 10g 20g 20g* 50g 100g 200g 200g* 500g |
1kg 2kg 2kg* 5kg 10kg 20kg 25kg 50kg 100kg 200kg 500kg 1000kg |
| M1 |
1mg-1000kg |
1mg 2mg 2mg* 5mg 10mg 20mg 20mg* 50mg 100mg 200mg 200mg* 500mg |
1g 2g 2g* 5g 10g 20g 20g* 50g 100g 200g 200g* 500g |
1kg 2kg 2kg* 5kg 10kg 20kg 25kg 50kg 100kg 200kg 500kg 1000kg |
M2
|
0.5kg-10tons
|
|
500g
500g |
1kg 2kg 2kg* 5kg 10kg 20kg 25kg 50kg 100kg 200kg 250kg 500kg 1000kg 2000kg 5000kg 10tons |
IKLAY attaches great importance to trusting customer contact and personal support: We are quickly and easily accessible for our customers. On the phone, by e-mail or directly on site.
IKLAY responds to special customer requests with great flexibility. Even short-term deadlines can be reliably met thanks to well-stocked warehouses and committed employees.
Quality-According to the quality class (E, F or M), we only use high-quality materials. For the highest quality classes, only blanks are used that are made of the special stainless steel. This material convinces by an excellent density and homogeneity as well as by extremely low magnetic properties.
Quality inside and out: Iklay manufactures high-quality storage containers for the safe transport and long-term storage of weights.
To learn more, please send your inquiry to my email. I will reply to you at the first time.
IKLAY weights | The "stabilizing force" of belt scale accuracy under harsh working conditions, the ultimate benchmark for durability verification!
Core selling points: Benchmark-level stability · No attenuation in harsh environments · Maintenance-free design · Core equipment for belt scale durability verification · Factory calibration certificate
Is there no standard verification for belt scale durability? The national standard requires long-term anti-interference of belt scales, but the regulations (JJG 195, GB/T 7721) lack a unified durability test method. How to prove that your equipment can stand the test of time?
The on-site working conditions are harsh and the accuracy is difficult to trace? Roller sticking, belt deviation, tension fluctuations... Traditional weights are easily eroded by the environment and cause inaccuracy. How to provide a reliable on-site calibration benchmark for belt scales?
Type evaluation lacks a "durability scale"? The results of the user's on-site re-inspection are incomparable, and a stable and reproducible measurement benchmark is urgently needed to verify the long-term performance of the belt scale.
IKLAY solution: Use the eternal stability of weights to define the durability and reliability of belt scales!
As a high-precision weight manufacturer, IKLAY knows that the durability of belt scales begins with the absolute stability of the calibration benchmark! In harsh environments such as mines, cement, and ports, IKLAY weights are your ultimate weapon to verify the long-term accuracy of equipment:
Durable weights designed specifically for industrial sites
"Zero" impact of harsh environments:
Using military-grade non-magnetic stainless steel and multi-layer composite anti-corrosion coatings to resist high humidity, salt spray, and dust erosion. Even if exposed to mine dust or port salt spray for a long time, the mass change rate is still far better than the highest level requirements of OIML R111, eliminating misjudgments caused by inaccurate weights.
Mechanical shock "rock-solid":
Special structural design and strengthening process ensures anti-deformation and anti-wear under conditions such as frequent handling and belt vibration, maintains the original accuracy of the weight level, and provides an unshakable on-site benchmark for belt scales.
"Adaptive" to temperature fluctuations:
Precise temperature compensation technology greatly reduces the effect of thermal expansion and contraction. The annual mass change under -20ºC to +50ºC environment is less than 1/3 of the maximum allowable error, ensuring the calibration reliability of the belt scale in scenarios with severe temperature differences.
"Golden Ruler" for Durability Testing of Belt Scales
The cornerstone of type evaluation:
When regulations lack specific durability test methods, IKLAY weights provide a quantifiable and reproducible stable benchmark. Manufacturers can verify the accuracy retention ability of belt scales after simulating aging/harsh working conditions through periodic weight calibration, providing authoritative data support for type evaluation.
"Trust Anchor" for On-site Maintenance:
Even in the face of interference such as roller sticking and belt deviation, regular on-site calibration with IKLAY weights can quickly diagnose the root cause of belt scale performance drift, distinguish equipment problems from environmental interference, reduce ineffective maintenance, and improve effective operation rate.
"Invisible Guardian" Beyond Old Regulations:
0.5mm Alignment of Rollers? Frame Deflection? IKLAY weights do not rely on ideal working conditions. They use absolute mass benchmarks to directly verify the anti-interference ability and long-term stability of belt scales in real complex environments, making durability "visible and accurate".
Why choose IKLAY weights?
Focus on benchmark durability: We don't make belt scales, but only the "heart" of scales - using decades of weight technology to protect the long-term credibility of industrial measurement.
Verify the key that regulations do not state: Provide an executable on-site test benchmark solution for the "durability clause" of JJG 195/GB/T 7721 to fill the gap in the standard.
User value doubled:
→ Belt scale manufacturers: accelerate product reliability verification and improve the persuasiveness of type evaluation
→ End users: reduce fault misjudgment, reduce calibration costs, and extend the maintenance-free period of belt scales
Application scenarios:
Belt scale factory aging test bench | On-site calibration at mines/ports | Durability evaluation by third-party metrology agencies | Regular calibration of high-dust cement plants | Accuracy traceability of power plants with severe temperature differences
Consult IKLAY's professional team now!
Get the "Durability Verification Weight Solution for Belt Scales in Harsh Working Conditions" and use the eternal benchmark to protect your every ton of value!
Audited Supplier 
){kind=link}