BSW-Series Square Drive Hydraulic Torque Wrench Manufacturer in China

High-Precision Hydraulic Torque Wrenches for Industrial Bolting Applications

LONGLOOD BSW-Series Square Drive Hydraulic Torque Wrenches are designed for accurate, feilich, and efficient bolt tightening and loosening in demanding industrial environments. Featuring aerospace-grade alloy construction, advanced 3D CAD engineering, and precision hydraulic drive technology, these tools provide reliable torque output with accuracy up to ± 3%.

With torque ranges from 183 Nm oan 72,000 Nm, the BSW Series covers a wide variety of fastening applications, including oil & gas, macht generaasje, petrochemyske, konstruksje, mynbou, skipsbou, en ûnderhâld fan swiere apparatuer.

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Key Features of BSW-Series Hydraulic Torque Wrenches

High-Strength Aerospace Material Construction

The BSW Series features a high-tech aerospace alloy body manufactured through integrated molding technology.

Foardielen befetsje:

• Excellent strength-to-weight ratio
• High durability under heavy loads
• Ferbettere corrosie ferset
• Lange libbensdoer yn drege yndustriële omjouwings

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Precision Torque Control ±3%

Designed with advanced 3D CAD engineering, LONGLOOD hydraulic torque wrenches provide:

• Accurate torque output
• Stabile hydraulyske prestaasjes
• Reduced risk of bolt over-tightening or under-tightening
• Reliable repeatability during critical bolting operations

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Quick Release Square Drive System

The square drive design allows operators to quickly switch between:

• Tightening operations
• Loosening operations

No special tools are required, improving working efficiency and reducing downtime.

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360° Swiveling Hydraulic Inlet Port

The hydraulic inlet port rotates 360°, foarsjen:

• Fleksibele posisjonearring
• Easy operation in confined spaces
• Reduced hose twisting
• Ferbettere operator feiligens

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360° Fine Adjustment Reaction Arm

An optional adjustable reaction arm provides:

• Better reaction point positioning
• Fergrutte applikaasje fleksibiliteit
• More accurate torque transfer
• Improved safety during operation

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Applikaasjes

LONGLOOD BSW-Series Hydraulic Torque Wrenches are widely used in:

• Oalje & gas pipeline maintenance
• Ynstallaasje fan petrochemyske apparatuer
• Wind power projects
• Power plant ûnderhâld
• Stiel struktuer konstruksje
• Skipsbou en offshore yndustry
• Mining equipment servicing
• Swiere masines gearstalling

Geskikt foar:

• Flange bolt tightening
• Large industrial fasteners
• High-strength structural bolts
• Pipeline connections

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BSW-Series Hydraulic Torque Wrench Specifications

Model	Square Drive Grutte	Torque Range (Nm)	Bolt Grutte (M)	Gewicht
BSW-1	3/4"	183-1837	M16-M36	2 kg
BSW-3	1"	451-4512	M22-M48	4 kg
BSW-5	1-1/2"	752-7528	M27-M56	7 kg
BSW-8	1-1/2"	1078-10780	M30-M64	9.1 kg
BSW-10	1-1/2"	1551-15516	M36-M72	13.1 kg
BSW-20	2-1/2"	2666-26664	M42-M90	25 kg
BSW-25	2-1/2"	3572-34725	M48-M100	31 kg
BSW-35	2-1/2"	4866-48666	M64-M120	45 kg
BSW-50	2-1/2"	7200-72000	M72-M125	87 kg

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Technical Design Advantages

Lightweight and Compact Structure

Compared with traditional bolting equipment, the BSW Series offers:

• Compact profile
• Reduzearre operator wurgens
• Maklik ferfier
• Access to restricted working areas

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High Torque Output

The wide torque range allows one tool series to handle:

• Small industrial bolts
• Large flange connections
• Heavy-duty structural fastening applications

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Betrouwbare Hydraulic Performance

The hydraulic drive system provides:

• Smooth torque application
• Constant output force
• Controlled tightening accuracy

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Wêrom kieze LONGLOOD Hydraulic Torque Wrenches?

Profesjonele Hydraulic Tool Fabrikant

LONGLOOD specializes in hydraulic tools and industrial bolting solutions, supplying professional equipment for global distributors, oannimmers, and industrial users.

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OEM & ODM Mooglikheid

Beskikbere maatwurk:

• Logo marking
• Produkt kleur
• Packaging design
• Accessories
• Technyske dokuminten

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Complete Hydraulic Bolting Solution

LONGLOOD jout:

• Hydraulyske koppelsleutels
• Hydraulyske pompen
• Hydraulic bolt tensioners
• Hydraulic nuts
• Nut splitters
• Accessories and spare parts

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Faak stelde fragen (FAQ)

1. What is the torque accuracy of the BSW hydraulic torque wrench?

The BSW Series provides torque accuracy of ± 3%, ensuring reliable and repeatable bolt tightening performance.

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2. Hokker yndustry brûke hydraulyske koppelsleutels?

Se wurde faak brûkt yn:

• Oalje en gas
• Petrochemical
• Power generaasje
• Wind energy
• Skipsbou
• Swiere apparatuer ûnderhâld

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3. How does a hydraulic torque wrench work?

The hydraulic pump delivers high-pressure oil to the wrench cylinder, generating controlled torque output to tighten or loosen bolts accurately.

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4. What square drive sizes are available?

The BSW Series offers:

• 3/4"
• 1"
• 1-1/2"
• 2-1/2"

square drive options.

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5. Can the reaction arm be customized?

Ja. LONGLOOD offers optional extended and adjustable reaction arms for special applications.

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6. Can these tools be used for bolt loosening?

Ja. The quick-release square drive allows easy switching between tightening and loosening operations.

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7. Do you provide complete hydraulic torque wrench kits?

Ja. LONGLOOD can supply complete solutions including:

• Hydraulic torque wrench
• Hydraulyske pomp
• Slang
• Koppelers
• Accessories
• Carrying case

How to Use a Hydraulic Pump Safely and Correctly

A hydraulic pump is the power source that converts mechanical force into hydraulic pressure to operate hydraulic cylinders, jacks, pullers, torque wrenches, and other hydraulic equipment. Proper operation ensures maximum performance, feilichheid, and longer service life.

Hydraulic Pump Operating Guide

1. Check the Hydraulic System Before Operation

Before using the pump, inspect all components carefully.

Kontrôle:

• Hydraulic pump condition

• Hydraulic oil level

• Hose condition

• Couplers and fittings

• Pressure gauge

• Hydraulic cylinder or tool connections

Make sure:

• There are no oil leaks

• All connections are tight

• The working pressure rating of all components matches the pump pressure

Never use damaged hoses, leaking fittings, or worn hydraulic components.

2. Select the Correct Hydraulic Oil

Use the recommended hydraulic oil specified by the manufacturer.

Before operation:

• Check oil level in the reservoir

• Add hydraulic oil if required

• Avoid mixing different types of hydraulic oil

• Keep oil clean and free from contamination

Contaminated hydraulic oil can damage:

• Pump valves

• Sealen

• Silinders

• Internal hydraulic components

3. Connect the Hydraulic Components

For a typical hydraulic cylinder system:

Connection order:

1. Connect hydraulic hose to the pump outlet

2. Connect the other end of the hose to the cylinder coupler

3. Install the pressure gauge if required

4. Ensure all couplers are fully locked

Make sure:

• Couplers are completely engaged

• Dust caps are removed before connection

• Connections are free from dirt and debris

4. Open the Hydraulic System

Before pressurizing:

• Open the release valve completely

• Confirm the cylinder piston is fully retracted

• Ensure the load is correctly positioned

For electric or air-powered pumps:

• Confirm power supply matches pump requirements

• Check motor rotation direction if applicable

• Ensure emergency stop functions properly

5. Operate the Hydraulic Pump

Hânlieding hydraulyske pomp

For hand pumps:

1. Close the release valve

2. Move the pump handle up and down

3. Hydraulic pressure will increase

4. Monitor the pressure gauge

5. Stop pumping when the required pressure or position is reached

Elektryske hydraulyske pomp

For electric pumps:

1. Connect the power supply

2. Start the pump motor

3. Use the control valve to extend the cylinder

4. Monitor pressure on the gauge

5. Stop operation when the required force is achieved

Air Hydraulic Pump

For air-driven pumps:

1. Connect compressed air supply

2. Adjust air pressure according to specifications

3. Activate the control valve

4. Monitor hydraulic pressure

5. Stop when the operation is complete

6. Monitor Pressure During Operation

Always observe the pressure gauge.

Important:

• Never exceed the rated pressure

• Maximum operating pressure is commonly 700 bar (10,000 psi) for many industrial hydraulic systems

• Avoid sudden pressure increases

• Stop immediately if abnormal noise, trilling, or leakage occurs

7. Releasing Hydraulic Pressure

After completing the operation:

1. Stop the pump

2. Slowly open the release valve

3. Allow hydraulic pressure to decrease gradually

4. Confirm the cylinder returns safely

5. Disconnect hoses after pressure reaches zero

Never disconnect hydraulic hoses while the system is pressurized.

8. Hydraulic Pump Maintenance

Regular maintenance improves reliability.

Daily Inspection

Kontrôle:

• Oalje lekt

• Hose damage

• Coupler condition

• Oil level

• Pressure gauge accuracy

Regular Maintenance

Útfiere:

• Hydraulic oil replacement

• Filter cleaning or replacement

• Seal inspection

• Hose replacement when worn

Common Hydraulic Pump Problems and Solutions

Probleem	Mooglike oarsaak	Oplossing
Pump cannot build pressure	Low oil level	Add hydraulic oil
Cylinder moves slowly	Air inside system	Bleed air from hydraulic circuit
Oil leakage	Damaged seal or fitting	Replace damaged parts
Pump becomes noisy	Low oil or contaminated oil	Check and replace oil
Pressure cannot hold	Valve leakage	Inspect valves and seals

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Safety Tips When Using Hydraulic Pumps

✔ Always use equipment within rated capacity
✔ Wear safety glasses and protective equipment
✔ Keep hands away from moving hydraulic components
✔ Use stable lifting surfaces
✔ Do not stand under suspended loads
✔ Never modify hydraulic components
✔ Release pressure before maintenance

Hydraulic Pump and Cylinder Compatibility

Before selecting a pump, confirm:

Single Acting Cylinder

Requires:

• Single acting hydraulic pump

• Hydraulic hose

• Gauge

• Release valve

Double Acting Cylinder

Requires:

• Hydraulic pump with a 4-manier rjochtingsklep

• Two hydraulic ports

• Correct return circuit

Using the wrong pump type may prevent the cylinder from operating correctly.

Faak stelde fragen (FAQs)

1. How do I start a hydraulic pump?

First check oil level and connections, close the release valve, then operate the pump handle or start the motor depending on the pump type.

2. How much pressure can a hydraulic pump generate?

Industrial hydraulic pumps commonly operate up to 700 bar (10,000 psi), while some special high-pressure pumps can reach higher pressures.

3. Why is my hydraulic pump not building pressure?

Common reasons include:

• Leech nivo fan hydraulyske oalje

• Lucht yn it systeem

• Losse ferbinings

• Beskeadige sealen

• Defekte kleppen

4. Kin ien hydraulyske pomp meardere silinders betsjinje?

Ja, ôfhinklik fan:

• Pomp oalje kapasiteit

• Flow rate

• Silinder folume

• Required bestjoeringssysteem snelheid

In grutter hydraulysk systeem kin in pomp mei hegere kapasiteit fereaskje.

5. Hoe kin ik kieze de rjochter hydraulyske pomp?

Beskôgje:

• Silinder type (single aktearjen of dûbel aktearjen)

• Ferplichte druk

• Oalje kapasiteit

• Flow rate

• Power boarne (hantlieding, elektrysk, loft, benzine)

6. Wêrom stopet in hydraulyske silinder te bewegen?

Mooglike oarsaken:

• Net genôch oaljestream

• Gesloten klep

• Lucht yn hydraulysk systeem

• Overload silinder

• Pomp malfunction

7. Hoe faak moat hydraulyske oalje wurde feroare?

Oaljeferfanging hinget ôf fan gebrûksbetingsten, mar reguliere ynspeksje en pland ûnderhâld wurde oanrikkemandearre foar yndustriële applikaasjes.

8. Kin hydraulyske pompen bûtendoar brûkt wurde?

Ja, mar outdoor applikaasjes fereaskje:

• Goede waarbeskerming

• Corrosion-resistant components

• Clean hydraulic oil

• Protection from dust and moisture

LONGLOOD Hydraulic Pump Solutions

LONGLOOD provides complete hydraulic solutions including:

• Hânlieding hydraulyske pompen

• Elektryske hydraulyske pompen

• Air hydraulyske pompen

• Gasoline engine hydraulic power units

• Hydraulic silinders

• Hydraulyske trekkers

• Hydraulic torque wrench systemen

Ûntwurpen foar yndustrieel ûnderhâld, konstruksje, swiere opheffing, and professional hydraulic applications.

How to Use a Hydraulic Pump with a Hydraulic Torque Wrench

IN hydraulysk koppel wrench systeem consists of a hydraulyske pomp, high-pressure hoses, and hydraulic torque wrench. The pump generates controlled hydraulic pressure, which drives the wrench to produce accurate and repeatable torque for tightening or loosening high-strength bolts.

LONGLOOD hydraulic torque wrench systems are widely used in industries such as wind power, oalje & gas, petrochemyske, skipsbou, macht planten, swiere masines, and steel structures, where precise bolt tightening is critical.

Hydraulic Torque Wrench System Components

In folslein hydraulysk koppelsleutelsysteem omfettet:

1. Hydraulic Torque Wrench

   • Konvertearret hydraulyske druk yn rotaasjekoppel

   • Biedt krekte bolt tightening krêft

2. Hydraulic Pomp

   • Generearret hydraulyske druk

   • Kontrolearret koppel útfier troch druk oanpassing

3. Hydraulyske slangen mei hege druk

   • Ferpleatst hydraulyske oalje tusken pomp en wrench

4. Drukmeter

   • Toant hydraulyske druk

   • Stelt krekte koppel oanpassing

5. Socket / Drive Accessories

   • Ferbynt wrench oan de bout of moer

Stap foar stap gids: Gebrûk fan hydraulyske pomp mei hydraulyske koppelsleutel

Stap 1: Selektearje de juste hydraulyske pomp

Kies in pomp neffens de torque wrench easken.

Beskôgje:

• Required koppel berik

• Operating druk

• Oalje flow rate

• Oantal wrenches tagelyk brûkt

De measte yndustriële hydraulyske koppelsleutelsystemen wurkje by:

Maksimum druk: 700 bar (10,000 psi)

Foarbyld:

IN 700 bar elektryske hydraulyske torque wrench pomp kin leverje stabile druk útfier foar hege-precision bolting applikaasjes.

Stap 2: Kontrolearje Hydraulic Oil Level

Before operation:

• Kontrolearje it nivo fan hydraulyske oalje yn it pompreservoir

• Soargje dat oalje skjin is

• Brûk oanrikkemandearre hydraulyske oalje

Net genôch of fersmoarge oalje kin feroarsaakje:

• Reduzearre koppel krektens

• Pump oververhitting

• Ynterne komponint skea

Stap 3: Ferbine hydraulyske slangen

Ferbine de pomp en wrench mei help fan hege-druk slangen.

Ferbining proseduere:

1. Útsette de hydraulyske pomp

2. Ferbine de oanfier slang oan de wrench

3. Ferbine de weromkommende slang oan 'e wrench

4. Draai koppelingen feilich oan

5. Ynstallearje beskermjende stofkappen as net yn gebrûk

Important:

• Nea ferbine of loskoppelen slangen ûnder druk

• Soargje derfoar dat de slangen net ferdraaid of skansearre binne

• Brûk allinne slangen rated foar 700 bar operaasje

Stap 4: Ferbine de Hydraulic Torque Wrench

Ynstallearje de wrench op 'e bout.

Before operation:

• Select correct socket size

• Confirm wrench reaction arm position

• Ensure the reaction point is stable

• Check that the wrench is aligned correctly

The reaction arm must contact a solid surface to prevent movement during operation.

Stap 5: Adjust Hydraulic Pressure

Hydraulic pressure determines the torque output.

Proseduere:

1. Check the torque chart supplied with the wrench

2. Find the required torque value

3. Convert required torque into hydraulic pressure

4. Adjust the pump pressure regulator

5. Confirm pressure on the gauge

Foarbyld:

If the torque chart indicates a specific pressure setting for a required torque value, adjust the pump until the gauge reaches that pressure.

Stap 6: Operate the Hydraulic Pump

Electric Hydraulic Pump Operation

1. Connect power supply

2. Turn on the pump

3. Select forward/retract mode

4. Pump sends hydraulic oil to the wrench

5. Wrench rotates and tightens the bolt

6. Release pressure after reaching the required torque

Manual Hydraulic Pump Operation

1. Close release valve

2. Operate pump handle

3. Monitor pressure gauge

4. Continue pumping until required pressure is reached

5. Release pressure after completing tightening

Stap 7: Tightening Procedure

Recommended tightening process:

1. Place torque wrench on the bolt

2. Position reaction arm securely

3. Increase hydraulic pressure slowly

4. Allow wrench to complete the tightening cycle

5. Release pressure

6. Repeat cycles if required

Foar krityske applikaasjes:

• Use cross-pattern tightening

• Follow specified bolt sequence

• Confirm final torque value

Stap 8: Release Pressure and Remove Equipment

After completing the operation:

1. Stop the hydraulic pump

2. Release hydraulic pressure completely

3. Confirm gauge reads zero

4. Disconnect hoses

5. Remove torque wrench

Never remove hoses while pressure remains inside the system.

Hydraulic Pump Selection for Torque Wrench

Pomp Type	Oanfraach
Elektryske hydraulyske pomp	Factory maintenance, bou sites, yndustriële bolting
Air Hydraulic Pump	Explosion-risk areas, oalje & gas applications
Gasoline Hydraulic Power Unit	Outdoor heavy-duty applications
Hânlieding hydraulyske pomp	Small torque applications and portable use

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LONGLOOD Electric Hydraulic Torque Wrench Pump Example

PEA4-9-220 Electric Torque Wrench Pump

Features:

• Kompakt en lichtgewicht ûntwerp

• High precision pressure adjustment

• Imported solenoid valve and piston components

• Stable torque control

• Suitable for repeated bolting operations

Technyske spesifikaasjes:

Parameter	Value
Voltage	220V
Frekwinsje	50Hz
Oalje Kapasiteit	6L
Krêft	1.3 kW
Maksimum druk	700 bar
Low Flow	8 L/min
Hege Flow	1 L/min
Gewicht	30 kg

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Hydraulic Torque Wrench Safety Guidelines

✔ Always use a pump, slang, and wrench with matching pressure ratings
✔ Never exceed 700 bar maksimum druk
✔ Inspect hoses before every operation
✔ Keep hands away from reaction points
✔ Ensure the reaction arm is properly positioned
✔ Do not use damaged sockets or accessories
✔ Release pressure before disconnecting hoses
✔ Wear safety protection during operation

Faak stelde fragen (FAQs)

1. Wêrom hat in hydraulyske koppelsleutel in hydraulyske pomp nedich??

De hydraulyske pomp leveret kontroleare druk dy't de wrench oandriuwt. De druk wurdt omboud ta krekte koppel útfier foar bolt tightening.

2. Hokker druk brûkt in hydraulyske koppelsleutel?

De measte yndustriële hydraulyske koppelsleutelsystemen wurkje by:

700 bar (10,000 psi) maksimum druk.

3. Kin ien hydraulyske pomp meardere koppelsleutels betsjinje?

Ja. Guon hydraulyske pompen kinne meardere wrenches tagelyk operearje as de pompstream en oaljekapasiteit genôch binne.

4. Hoe set ik de juste koppel wearde?

The required torque is determined using the wrench manufacturer's torque-pressure conversion chart. Pas de hydraulyske pomp druk neffens it fereaske koppel.

5. Kin in hydraulyske pomp brûkt wurde mei ferskate merken fan koppelsleutel?

Ja, sa lang as:

• Bedriuwsdruk oerienkomt

• Slangferbiningen binne kompatibel

• Oalje flow easken binne geskikt

6. What is the difference between a normal hydraulic pump and a torque wrench pump?

A torque wrench pump is specially designed for:

• Precise druk kontrôle

• Stable flow output

• Repeated tightening cycles

• Accurate torque application

7. Why is torque accuracy important?

Correct torque ensures:

• Proper bolt preload

• Joint safety

• Reduced risk of bolt failure

• Reliable equipment operation

8. What industries use hydraulic torque wrench systems?

Algemiene applikaasjes omfetsje:

• Wind turbines

• Oil and gas pipelines

• Petrochemical equipment

• Power planten

• Skipsbou

• Steel structures

• Heavy machinery

LONGLOOD Hydraulic Torque Wrench Solutions

LONGLOOD provides complete hydraulic bolting solutions including:

• Electric hydraulic torque wrench pumps

• Air-oandreaune hydraulyske pompen

• Gasoline hydraulic power units

• Hydraulyske koppelsleutels

• High-pressure hoses and accessories

Designed for accurate, feilich, and efficient industrial bolt tightening applications.

Oanfreegje in offerte

Op syk nei in betrouber Square Drive Hydraulic Torque Wrench Fabrikant yn Sina?

Nim kontakt op mei LONGLOOD foar technyske spesifikaasjes, OEM oplossings, en fabryk-direkte prizen.

✓ Koppelberik oant 72,000 Nm
✓ Krektens ± 3%
✓ Aerospace Alloy Construction
✓ OEM & ODM beskikber
✓ Yndustriële Bolting Solutions wrâldwiid