▶ Product Introduction
● Bearing mechanism increases mechanical efficiency;
● Forged and heat treat top and bottom hooks with safety latch;
● Double pawl mechanism supporting brake system;
● Double cover to keep out rainwater and dust;
● Sure and Reliable mechanical brake.Highly accurate and durable gears;
● Meets requirement of En13157;
● Alloy steel load chain,Variety surface treating option.
▶ Technical parameters
| Model. | HSZ-D 1T | HSZ-D 2T | HSZ-D 3T | HSZ-D 5T | |
| Capacity（T） | 1 | 2 | 3 | 5 | |
| Standard lift（m） | 3 | 3 | 3 | 3 | |
| Load Chain | No.of falls | 1 | 1 | 1 | 2 |
| Dimension mm | 6X18 | 8X24 | 10X30 | 9X27 | |
| Effor required to lift max.load（n） | 250 | 335 | 372 | 360 | |
| Dimensions（mm） | A | 149 | 176 | 231 | 249 |
| B | 153 | 173 | 185 | 185 | |
| C | 29 | 35 | 39 | 49 | |
| D | 352 | 385 | 445 | 615 | |
| Net Weight（kg） | 14.5 | 19.5 | 32 | 41 | |
| Gross weight（kg） | 15 | 20 | 34 | 43.5 | |
| Extra weight per meter of extra lift（kg） | 1.65 | 2.15 | 3 | 4.8 | |
▶ Company Introduction
Baoding Hoisting Machinery Works ,founded in1976,covers an area of 25000 square,owning more than 180 employees,lt is located in the ancient city of Baoding,which is close to the highway,107 national road and other important traffic trunklines.The convenient transportation and flow of information make us have the unique geographical advantage.Our factory has rich production experience, advanced production equipment, and perfect means.
▶ Our Products
Our main products are "golden dragon" brand HS, HSZ-A, HSZ-B, HSZ-C, HSZ-D, HSZ-E, HSZ-VD, HSZ-VT, HSZ-O, and roller shutter series Chain Block.At the same time,we also produce HSH-E and HSH-VT series lever hoists; PA.CD1.MD1.JC25 and HHBB series electric hoists; GCT and DST series plain trolley; hand hydraulic car; Electric Winch; cargo trolley; Magnetic lifter; Mechanical Jack; webbing slings etc.
▶ Qualifications Possessed
Our chain blocks have passed the CE certficate GS certificate and ISO9001 international quality system certificate since 20o1.For their reliable performance and excellent quality,our commodities have been exported to more than 30 countries in the world,and earn good reputation both at home and abroad.
At present,our annual production capacity is 150000 units _and more than 95% of them are exported abroad.Providing first-class products and thoughtful after- sales service are our consistence purpose.Sincerely welcome you to establish business relations with us,and seek common development!
HSZ-D 3T Series Chain Block: A Practical Guide to Reliable 3-Ton Manual Lifting
How do you choose a 3-ton manual lifting tool when you need dependable lifting performance but do not want to rely on electrical power? This is a common question we hear from customers working in factories, workshops, warehouses, construction sites, and maintenance areas.
As a manufacturer of lifting equipment, we know that a chain block is not simply a device for lifting a heavy object. The right Hoist needs to match the load, working environment, lifting method, and frequency of use. For many everyday lifting jobs, a Manual Chain Block can be a practical and straightforward solution.
Our HSZ-D 3T Series Chain Block is designed for manual lifting applications involving suitable loads within its rated capacity. It is part of our HSZ series of hand chain hoists, one of the product groups we have manufactured and supplied as part of our lifting equipment range.
Our factory was established in 1976. Over the years, we have developed experience in manufacturing hand chain hoists, lever hoists, electric hoists, monorail trolleys, pallet trucks, lifting clamps, slings, jacks, winches, and other material handling equipment. We use this practical manufacturing experience when we develop product information and help customers select suitable lifting equipment.
The HSZ-D 3T Series Chain Block is a manual chain hoist intended for lifting suitable loads up to a rated capacity of 3 tons. Unlike an electric hoist, it does not need an electrical motor to raise the load. The operator uses the hand chain to operate the lifting mechanism.
This simple operating method can be useful when electricity is unavailable, when the lifting task is occasional, or when a company wants a straightforward manual lifting solution for maintenance and material handling work.
In our experience, customers often choose manual chain blocks because they are easy to understand and do not require a complicated power connection. A properly selected manual hoist can also be moved between different work areas when the application allows it.
The basic concept is simple: the load is connected to the load hook, the hoist is properly supported from an appropriate suspension point, and the operator controls lifting through the hand chain. The internal mechanism provides mechanical advantage, allowing the operator to lift a substantially heavier load than could normally be moved by hand alone.
However, simple operation does not mean that a chain block can be used without planning. The supporting structure, load weight, lifting direction, hooks, chain, working environment, and operating method all matter.
ASME HST-2-2023 describes performance requirements for hand-chain manually operated chain hoists used for vertical lifting of freely suspended, unguided loads. It also makes clear that such equipment is not intended for lifting or supporting people. We consider this distinction important when explaining the correct use of a manual chain hoist.
No electrical power is required for normal manual operation.
The operating principle is straightforward and easy to understand.
It can be useful for maintenance and occasional lifting work.
It can be suitable for workshops, warehouses, factories, and construction applications.
Manual operation gives the operator direct control of the lifting movement.
It can complement other lifting equipment when electrical lifting is not necessary.
For a 3-ton application, the most important point is not simply finding a hoist with the number "3T" in its name. We always recommend checking the actual load, suspension arrangement, lifting direction, working conditions, and equipment condition before starting work.
A manual chain block uses a mechanical lifting mechanism to convert movement of the hand chain into lifting movement at the load chain. The operator pulls the hand chain, and the internal components transfer this movement to the load-lifting mechanism.
The load chain passes through the hoist mechanism and is connected to the load hook. As the mechanism rotates, the load chain moves and raises or lowers the connected load.
From the operator's point of view, the process is quite simple. From an engineering point of view, several components work together to control the load.
Load chain: Transfers lifting force from the hoist mechanism to the load.
Load hook: Connects the hoist to the load or suitable lifting accessory.
Hand chain: Provides the manual input used to operate the hoist.
Gearing mechanism: Provides the mechanical advantage needed for manual lifting.
Brake mechanism: Helps control the load during lifting and lowering.
Upper suspension: Connects the hoist to an appropriate supporting structure.
These components should not be considered separately. A lifting system works as a complete system, and a strong hoist cannot compensate for an unsuitable supporting structure or incorrect lifting accessory.
For this reason, we advise customers not to select equipment only according to the maximum load they want to move. The entire lifting arrangement should be considered before the hoist is put into service.
A manual chain hoist is normally intended for vertical lifting of suitable freely suspended loads. Pulling a load sideways with the hoist can create forces that are different from normal vertical lifting.
This is one reason we recommend positioning the hoist directly above the load whenever the application requires vertical lifting. Keeping the lifting line as straight as practical helps reduce unnecessary side loading and makes the operation easier to control.
ASME HST-2-2023 specifically addresses vertical lifting service involving freely suspended, unguided loads. It also excludes applications such as lifting or supporting people and certain uses where the load is not freely suspended.
One advantage of a manual chain block is its range of possible applications. We have seen this type of equipment used in many different working environments, although the exact application must always be checked against the equipment's rated capacity and instructions.
In a factory, maintenance teams may need to move motors, machine components, tooling, or other heavy parts. Not every maintenance area has a convenient electrical lifting point.
In these situations, a 3-ton manual chain block can provide a practical lifting option when a suitable support structure is available. For occasional maintenance work, the simplicity of manual operation can be useful.
When installing or repositioning heavy equipment in a workshop, controlled lifting is often more important than lifting speed. A manual hoist allows the operator to make gradual lifting movements and stop when necessary.
For example, imagine a maintenance team installing a large machine component. Instead of trying to move the component with several workers, the team may use a properly selected lifting system to raise and position the component more systematically.
Warehouses sometimes need lifting equipment for handling machinery parts, steel components, tooling, or maintenance materials. A manual chain hoist may be useful where lifting is occasional rather than continuous.
However, a warehouse should never treat a chain block as a replacement for every type of material-handling equipment. For frequent horizontal movement, pallet trucks or load-moving skates may be more suitable. For repeated powered lifting, an electric hoist may be more appropriate.
Construction and installation teams may encounter areas where electrical power is limited or where a simple manual lifting device is convenient.
A chain block can be useful for suitable vertical lifting tasks when there is a properly engineered suspension point. The supporting structure is especially important because the hoist capacity does not automatically represent the capacity of the building, beam, temporary support, or lifting accessory.
During equipment repair, technicians may need to raise or hold a machine component while completing maintenance work. A manual hoist can be useful for controlled positioning when the load and lifting arrangement are suitable.
We always recommend that operators understand the difference between lifting a load and supporting a load during repair work. A suspended load should never be treated casually, and workers should not stand under it.
| Application | Typical Reason for Using a Manual Chain Block | Key Point to Check |
|---|---|---|
| Factory maintenance | Occasional lifting of machine components | Support structure and load weight |
| Workshop installation | Controlled positioning of equipment | Vertical lifting arrangement |
| Warehouse work | Handling occasional heavy components | Frequency of lifting operations |
| Construction work | Manual lifting where suitable support is available | Suspension point and environment |
| Equipment repair | Raising suitable machine parts | Load stability and work-zone control |
Source: Application guidance is based on the operating scope and limitations described in ASME HST-2-2023 and ASME B30.16. Specific applications must be evaluated according to the actual equipment and working conditions.
Customers sometimes ask us whether they should choose a chain block, lever hoist, or electric hoist. There is no single answer for every job. Each type is designed around a different operating method.
Our product range includes both hand-operated and powered lifting equipment, so we usually start by asking a simple question: how will the equipment actually be used?
A manual chain block is particularly useful for vertical lifting of suitable freely suspended loads. It is a practical choice when electrical power is not required or is not available.
A lever hoist is operated with a lever rather than a continuous hand chain. Depending on the model and application, lever hoists can be used for lifting, pulling, tensioning, and positioning tasks.
Because the operating method is different, a lever hoist can be more convenient for certain horizontal or tensioning applications. The actual equipment instructions and rated capacity must always be followed.
An electric hoist uses a motor to perform the lifting operation. This can be useful where lifting is frequent and reducing manual effort is a priority.
On the other hand, powered equipment requires an appropriate electrical supply and introduces additional components that need inspection and maintenance.
| Equipment Type | Operating Method | Typical Strength | Consideration |
|---|---|---|---|
| HSZ-D 3T Series Chain Block | Manual hand chain | Simple manual vertical lifting | Requires operator effort |
| Lever Hoist | Manual lever | Lifting, pulling, and tensioning applications | Application depends on model and capacity |
| Electric Hoist | Electric motor | Repeated powered lifting | Needs suitable electrical power and maintenance |
Source: Equipment scope and distinctions are informed by ASME HST-2 for hand chain hoists, ASME HST-3 for lever hoists, and ASME B30.16 for overhead, underhung, and stationary hoists.
In simple terms, we would not tell a customer to choose a manual chain block simply because it is cheaper or easier. We first look at the work. If the task is occasional vertical lifting and manual operation is acceptable, a chain block may fit well. If the job involves repeated lifting, powered equipment may need to be considered.
Choosing a 3-ton chain block involves more than checking the product name. Here is the practical checklist we use when discussing lifting equipment with customers.
Start with the real weight of the load. Do not estimate if reliable weight information is available.
If the load weighs 3 tons, the hoist must be suitable for that load and the complete lifting arrangement must also be capable of handling it. If the load is below the rated capacity, that does not automatically make every lifting arrangement safe.
The upper hook or suspension point must connect to a structure that is suitable for the lifting load. A chain block can only work safely when the supporting point is appropriate.
This is especially important when a temporary beam, frame, trolley, or other structure is being considered. The capacity of the support should be evaluated separately.
For a conventional manual chain block, vertical lifting is a key consideration. The hoist should be positioned so that the load chain and load are properly aligned.
Avoid using the hoist as a general-purpose pulling tool unless the particular equipment and application are specifically designed for that purpose.
How often will the hoist be used?
If the equipment is used once or twice during maintenance, manual operation may be practical. If workers need to lift loads continuously throughout the day, an electric hoist may deserve consideration.
Think about dust, moisture, temperature, available space, access, and other site conditions. A hoist used indoors in a clean workshop may experience very different conditions from one used outdoors on a construction site.
The chain block is only one part of a lifting system. Slings, shackles, lifting clamps, hooks, beams, trolleys, and other accessories may also be involved.
Every accessory must be suitable for the intended load and application. Never assume that a high-capacity hoist makes an undersized sling or attachment point acceptable.
| Selection Question | What We Check | Why It Matters |
|---|---|---|
| What is the load? | Actual load weight | Determines required lifting capacity |
| How is it suspended? | Beam, hook, trolley, or approved support | Ensures the complete system is considered |
| Which direction? | Vertical or other intended movement | Different applications create different forces |
| How often? | Occasional or repeated lifting | Helps determine manual or powered equipment |
| Where? | Workshop, factory, warehouse, construction site, etc. | Working conditions affect equipment selection |
| Which accessories? | Slings, hooks, clamps, shackles, etc. | The entire lifting system must be suitable |
Source: Selection considerations are aligned with the scope and safety framework of ASME HST-2-2023 and ASME B30.16. Actual equipment selection should be based on the manufacturer's instructions and site-specific engineering requirements.
A good lifting product still needs good operating habits. From our manufacturing experience, many avoidable problems can be reduced by paying attention to a few basic points.
Confirm the load weight before lifting.
Check that the hoist is suitable for the intended application.
Inspect the hooks, load chain, hand chain, and visible components.
Check the suspension point before attaching the hoist.
Make sure the load is properly connected.
Keep people away from the area below and around the suspended load.
Make sure the lifting path is clear.
We strongly recommend a visual inspection before use. Look for obvious damage, deformation, corrosion, unusual wear, or other conditions that may affect operation.
Lift gradually rather than pulling aggressively on the hand chain. Watch the load as it starts to move. If the load tilts unexpectedly, stop and correct the lifting arrangement rather than trying to force it into position.
Keep the load as stable as possible. Sudden shock loading, uncontrolled swinging, and side pulling can create forces that are different from normal controlled lifting.
Once the lifting operation is finished, return the equipment to an appropriate storage or maintenance condition. Do not leave a suspended load unattended.
If the hoist shows abnormal noise, damaged components, chain problems, hook deformation, or other signs of malfunction, remove it from service until it has been properly evaluated.
Maintenance should follow the manufacturer's instructions and the applicable workplace requirements. ASME B30.16 includes sections covering inspection, testing, operator training, maintenance training, equipment maintenance, and welded link chain replacement and maintenance.
This is one reason we recommend keeping a simple equipment inspection and maintenance record for industrial lifting equipment. A written record helps maintenance teams remember what was checked and when.
Do not exceed the rated capacity. Capacity should be treated as a firm limit, not a target to test.
Keep the load aligned. Avoid unnecessary side loading.
Inspect before use. Small visible problems should not be ignored.
Do not lift people. A material-handling chain hoist is not automatically a personnel lifting device.
Stop when something looks wrong. If the hoist behaves differently from normal operation, investigate before continuing.
ASME HST-2-2023 specifically excludes hoists that are damaged, malfunctioning, misused, abused, or altered without proper authorization. It also excludes hoists used for lifting or supporting people. These limitations are important because the correct use of lifting equipment is just as important as the equipment itself.
The HSZ-D 3T Series Chain Block is intended for suitable manual lifting applications involving loads within its rated capacity. Typical environments can include workshops, factories, warehouses, construction work, equipment installation, and maintenance operations. The exact application should always be checked against the equipment instructions and working conditions.
The "3T" designation indicates a 3-ton rated lifting capacity for the product. However, the complete lifting system must also be suitable for the load. The supporting structure, hooks, slings, connection points, and other accessories should be checked before lifting.
No electrical motor is required for its normal manual operation. The operator uses the hand chain to operate the lifting mechanism. This makes a manual chain block useful in locations where electrical power is unavailable or where powered lifting is not necessary.
No. A standard material-handling chain hoist should not be assumed to be suitable for lifting or supporting people. ASME HST-2-2023 specifically excludes hoists used for lifting or supporting people from its scope.
Consider how frequently the equipment will be used, whether electricity is available, how quickly the load needs to be lifted, and what type of work is being performed. A manual chain block can be practical for occasional controlled lifting, while an electric hoist may be considered for repeated powered lifting. The final selection should be based on the actual application and manufacturer requirements.
When customers ask us about a HSZ-D 3T Series Chain Block, we do not look at the product name alone. We look at the complete lifting job: the load, support point, lifting direction, work environment, frequency of use, and accessories.
That is the approach we have developed through years of manufacturing lifting equipment. Our factory was established in 1976, and our product range has grown from hand chain hoists to lever hoists, electric hoists, monorail trolleys, pallet trucks, lifting machines, winches, wire rope pullers, Lifting Chains, slings, clamps, and other material-handling products.
For a suitable vertical lifting application, a 3-ton manual chain block can be a straightforward and useful piece of equipment. It does not depend on an electric motor, and its manual operating principle is easy for users to understand.
At the same time, we believe that good lifting practice should always come before convenience. Check the load. Check the support. Check the equipment. Keep the load controlled. Follow the manufacturer's instructions and applicable safety requirements.
For us, reliable lifting equipment is not only about manufacturing a product. It is also about helping customers understand where the product fits, how it should be selected, and how it should be used in real working conditions.
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