Jb-S500 LCD Digital Display Type Impact Testing Machine

• Customization: Available
• After-sales Service: Whole Life
• Warranty: 1 Year
• Model NO.: JB-S500
• Max Diameter of Workpiece: 1000mm
• Mass Scope of Workpiece: 3000kg
• Type: Impact Testing Machine
• Maxcapacity: >1000KN
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Static Load
• Display: Digital
• Control: Computer Control
• Weight: 500-1000Kg
• Power Source: AC220V
• Oil Cylinder Position: Under
• Division Value Per Cell: 1j 2j
• Span of Sample Support: 40mm
• Angle of Impact Knife: 30
• Specimen Specification: 10 *10 *55mm
• Feeding Speed: Less Than 2 Second
• Net Weight: About 880kg
• Power Supply: Three-Phase Four-Wire 380V/50Hz
• Impact Energy: 300j 450j 500j 600j 750j
• Impact Speed: 5.24m/S
• Impact Blade: 2-2.5mm
• Knife Thickness: 16mm
• Temperature Range: Room Temperature
• Appearance: 1700*2000*1450mm
• Motor Power: 370W
• Capcity Impact: 250jm500j
• Transport Package: Plywood Case and Others
• Specification: 890*890*1155
• Trademark: CHENJI or OEM
• Origin: China Jinan or Others
• Production Capacity: 100 PCS / Month
• Package Size: 120.00cm * 110.00cm * 90.00cm
• Package Gross Weight: 360.000kg

Product Description

Product Description

 

 Microcomputer Control Double Refrigeration Ultra-Low Temperature Impact Tester

 

 

 

Introduction
1. Project introduction:
The PLC controlled pendulum impact testing machine is a new type of impact testing machine product that our company first introduced in China in the late 1990s. It involves iron and steel metallurgy, machinery manufacturing, colleges and universities, scientific research institutes and other fields. The product is also exported to Australia, India, Malaysia, Turkey, Brazil and other countries, and has won unanimous praise from users at home and abroad.
2. Field of use:
This machine is suitable for mechanical metallurgy, aerospace, colleges and universities, scientific research institutes and other fields to measure the impact toughness value of metal materials and the impact resistance of metal materials under dynamic load.
3. According to the standard:
JB-S500 digital pendulum impact testing machine is designed by our company in strict accordance with GB/T3038-2002 "Inspection of Pendulum Impact Testing Machine" and GB/T229-2020 "Charpy Notch Impact Test Method for Metals", according to JJG145- 82 "pendulum impact testing machine" factory inspection.
4. Program description:
The unique appearance of this product is novel, beautiful and generous; in terms of structure, the pendulum suspension adopts a simply supported beam structure, and the force mode is more reasonable; in terms of transmission, a standard reducer is used to replace the original pulley, worm and worm gear, and the structure is more Simple; in terms of electrical appliances, the equipment is controlled by Panasonic's PLC programmable controller, and replaces most of the original mechanical limiters with photoelectric proximity switches, with strong anti-interference ability, accurate test data and more reliable performance; reliable safety pins The device and the novel guardrail make the operator safer; the door type strong electric panel makes the maintenance easier. In addition, the device replaces the old-fashioned single-brush clutch with a double-brush clutch, which solves the problem that the device can satisfy the different power supply modes of three-phase four-wire system and three-phase five-wire system at the same time. The electrical control circuit refers to international standards and conforms to the national electrical standards for testing machines. The working principle of the equipment is to use a high-precision photoelectric encoder and a liquid crystal display with a special measurement and control card to detect the impact absorption energy and the impact toughness of the material by detecting the difference between the potential energy before and after the impact of the pendulum. The display mode is dual display: the dial pointer and the liquid crystal display are displayed at the same time; the liquid crystal display can not only display the impact absorption energy, impact toughness, but also automatically process the test data and automatically generate the test report. The action control of taking the pendulum, withdrawing the pin, impacting, and placing the pendulum can be controlled manually by the manual control box, or automatically controlled by the mouse input by using the LCD program, and the test results can be printed in batches or one by one. The action of the pendulum is controlled by the industrial Siemens PLC control system. The high-precision rotary encoder is used to obtain the real-time position of the pendulum. The system is stable and reliable, and the data is accurate. The Chinese text display can display the pendulum angle and test results in real time, which is convenient for input. Various parameters, simple and convenient. And reserved LAN interface.
This machine is equipped with electronic refrigeration and heat preservation equipment designed and produced according to the requirements of GB229-2020 "Charpy Notch Impact Test Method for Metals" standard for low temperature test. This equipment has no chemical pollution, no noise, small size, simple operation and high control precision. It is an ideal sample cooling and heat preservation equipment in the impact test of metal materials, and can also be used for other low temperature detection and testing. The working principle is to use semiconductor electronic components to generate temperature difference when energized. When the heat in the high temperature area is continuously taken away, in order to maintain the temperature difference between the low temperature area and the high temperature area, the temperature of the area will be continuously lowered to play the role of cooling and cooling.
5. Working principle:
The equipment adopts Panasonic PLC as the lower computer control, and the liquid crystal display control as the upper computer control, completes the data exchange and instruction transmission between the upper and lower computers. A high-precision rotary encoder is used to obtain the real-time position of the pendulum to obtain shock absorption energy. It has the characteristics of system reliability, stability and accurate data.
Technical Parameter:
△ Impact energy: 500J, 250J 
△Dial scale range and division value:

Energy arrange	0~500J	0~250J
Graduation value per cell	5J	2.5J

△Pendulum moment:

Pendulum impact energy	500J	250J
Pendulum Moment	267.9492 N·m	133.9746 N·m

△ Pendulum pre-lift angle: 150°
△ Distance from the impact point of the spindle center (sample center): 850mm
△ Impact speed: 5.4m/s
△ Sample support span: 40mm
△ Arc radius at the end of the sample support: 1~1.5mm
△ The inclination angle of the support surface of the sample support: 0°
△ Impact knife arc radius: 2~2.5mm
△ Impact knife angle: 30°
△ Impact knife thickness: 16mm
△ Specimen size: (10×10×55)mm
△ Tester weight: about 550kg
△ Dimensions of the testing machine: 2300×600×1400mm
△ Power supply: three-phase four-wire system 50Hz 380V 250W (main motor)
△ Digital display shows minimum resolution: 0.1J
 Working condition:
a. The room temperature is within the range of 10-35ºC;
b. The relative humidity is not more than 85%;
c. In an environment without corrosive media around;
d. Installed on a concrete foundation with a thickness of not less than 300mm or fixed on a foundation greater than 880kg;
e. The level of the installation reference plane on the base is adjusted to within 0.5/1000;
Structure Introduction:
The JB-S500 impact testing machine consists of the following parts:

1. body; (2) pendulum mechanism; (3) hang-off mechanism; (4) automatic pendulum signal device; (5) dial indicator; ( 6) pendulum; (7) protective device; (8) electrical control part;
2. (9) digital display and printing device.

Standard Configuration
1. Host Machine: one.
2. Pendulum: Specifications, large pendulum 500J, small pendulum 250J. Quantity, one each, two in total.
3. Span template: specification, L=40. quantity, one.
4. Sample centering block: specification, L=40 (V.U) type. quantity, one.
5. Disassembler: Quantity, one.
6. Wrench: Specification, S=30. quantity, one.
7. Hexagonal wrench: Specification, S=14. quantity, one.
8. Corner screw: specification, M16×200. Quantity, four sets.
9. Jaws (including brackets): quantity, one pair. Remarks, already installed on the host.
10. JBS includes a set of LCD Panel.
Quality Guarantee:
The equipment warranty period is one year.
During the warranty period, the supplier will provide free maintenance services for all kinds of equipment failures in a timely manner. All kinds of parts that are not caused by man-made damage will be replaced free of charge in time.
After the warranty period, if the equipment fails during use, the supplier provides services to the orderer in a timely manner and actively assists the orderer to complete maintenance tasks.
 

Packaging & Shipping

 

After Sales Service

 

Thank you for selecting testing machine. Prior to use, please read the operation manual carefully to make sure fully understand the content. Please take care of and operate it properly so as to maintain higher precision and normal running state forever.

Caution!!!

1. It can adopts 3 phases 5 lines 50Hz 380V power supply, Please be sure to connect correctly. Furthermore, do connect with earth in order to guarantee normal running of the machine and personal safety.
2. When operating the machine, press 'taking pendulum' button, pendulum should do anticlockwise running when facing the positive-going position of machine. If do clockwise running, the power supply must be cut off immediately for changing the order of phases.

  




 

1. Applications and Features

   JB-500S  is developed as per GB/T3808-2002 <Inspection of Pendulum impact testing machine>, and can finish impact test according to GB/T229-2020<Method of Metal Charpy Gap Impact Test>. It can realize two kinds of impact energy 500J and 250J. The section area of specimen is 10×10mm. mainly use to test larger impact toughness ferrous metal, such as: steel and alloy material.
Its principle is to calculate difference of the energy before and after pendulum impacting, the difference is energy which absorbed by specimen. The machine can be operated by semiautomatic, easy to operate, and high efficiency. Furthermore, it can swing up the pendulum automatically by using residual energy. It is especially suitable for continuous test.

1. Main specification
   1. Impact energy:                              500J,250J
   2. Dial graduation range and value:

Range of energy	0~500J	0~250J
Per graduation value	5J	2.5J

1. 1. Pendulum moment:

Pendulum impact energy	500J	250J
Pendulum moment	267.9492N.m	133.9746N.m

1.  Pre lift angle of pendulum: 150 º
2. Distance from pendulum center to impact point (test center): 800mm
3. Impact speed: 5.4m/s
4. Span of sample support: 40mm
5. Arc radius at the end of sample support: 1 ~ 1.5mm
6. Inclination of support surface of sample support: 0 º
7. Arc radius of impact knife: 2 ~ 2.5mm
8. Included angle of impact knife: 30 º
9.  Thickness of impact knife: 16mm
10.  Sample specification: 10 × 10 × 55mm
11. Weight of testing machine: about 750KG
12.  Power supply: three-phase four wire system 50Hz380V
13.  Motor power: 380v 250w
14. Minimum resolution of digital display: 0.2j

Working condition:

1. 1. Ambient temperature: 10-35ºC
   2. Relative humidity: ≤85%
   3. Around it without corrosive medium
   4. Installing on the concrete groundwork, which thickness is not less than 300mm. or fixing on the base, which weight is over 880kg.  
   5. Levelness of installing datum plane of machine base is 0.5/1000.
2. Brief description of the structure:

   The machine consists of the following parts: 1. Main body 2. Pendulum load and unload mechanism 3. Signal measuring device 4.Dial display 5.Pendulum 6.Safty device 7.Electrical system

1. Electrical control principle

1.  Taking pendulum
Pressing pushbutton 1AN to activate contactor 1C for connecting motor LD, through breaker 1J,2J,3J and clutch CH; After the pendulum raising the highest position, the  microswitch 1WK is toughed to stop the motor, the other electrical units are restored and the security pin is pulled out.
2.  Returning the pin
Pressing the pushbutton 2AN,the security pin is returned.
3.  Impact
Pressing the pushbutton 4AN,the electrical-magnetic block DT is powered to fall down pendulum for impacting, all electrical units are restored.
4.  Auto-raising pendulum
After electrical power is switched on, the servo motor DS is rotating counterclockwise, in such case the drived point Kb is in breaking down position, when the pendulum is in stop position or is rotating along falling down direction, the point Kb could be not powered. When the pendulum is rotating up, the rotating angle is large than servo motor angle, point Kb is powered and powered relays 1J and 2J. When pendulum angle is falling down to small than servo motor angle, the point Kb is off, and the relay 3J activates, at the same time the clutch CH and contactor IC are powered, to rotate driven motor for raising pendulum.
5.  Switch K2 is security one, and the pushbutton 3AN is falling pendulum pushbutton.

1. Installation and trial operation

1. After removing the package and cleaning the oiled body, the testing machine should be moved to the prepared foundation. The machine base should be adjusted within 0.5/1000 with level adjuster and then fix foundation bolt.
2. Inspect all parts are whether in good condition and rotating parts should be flexible.

Connect the power supply with 380V, 50HZ, 3 phrase 4 lines .

1. Insert the pin of the push-button case into the socket.
2. Switch on power supply, indication lamp is light up. The servo motor of signal equipment is rotated counterclockwise (looking from working position).
3. Connect the power supply, and push the switch on the manual control box at "on" position. Press pushbutton "driving pendulum", the pendulum should be rotated anticlockwise,(if find the pendulum is rotated clockwise, the testing machine must be stopped immediately for changing the phase) when the pendulum rising up at the fixed position, press the limit position switch, the motor should be stopping rotating, the electric-magnetic clutch should be unload, the pendulum is hanged on pendulum mechanism by its weight. When it is necessary for "Releasing pendulum", press the pushbutton "Releasing pendulum" on the manual control box (or apply the computer "Releasing pendulum" program to control), the electric-magnetic iron is powered, the electric-magnetic clutch is engaged. The motor is rotating and pendulum is returned clockwise. When it rotates at plumb position, relief the pushbutton and the pendulum is stopped.
4. Pointer zeroing: When the pendulum is hanging freely motionless, the pointer should be at the position of maximum energy. After adjusting, lock tightly the bolt on pointer.
5. Check energy loss( operate according to the computer software instruction manual ):

After adjusting the position of the string pointer and clock hand, firstly, driving pendulumàhanging pendulum, the pendulum is in load free left and right. When it goes up the maximum height left position, the pointer must be moved with hand back to left limit position of reading dial (notice not to touch driving pointer). After the pendulum second time returns the pointer to the right position of the reading dial, the indication value must be written on. The difference between the two times should be divided with 2 (the first time must be returned to zero), The value is the energy lost in dry friction during one time impact pendulum. The energy loss is not large than 1.5 joule for the pendulum with 500 joule and the energy loss is not large than 0.75 joule for the pendulum with 250 joules.

1. Support span and knife edge position adjustment according to fig 2.

1. Operation and maintenance

1. The machine must be load free operation to impact whether the machine in normal condition (the manner carried out to the item 5-8 of "installation and trial operation"). If security pin could not remused, and pressing the pushbutton "WITHDRAW" to resume the security pin.
2. The pendulum with 300J and 150J can be selected according to energy requirement. When changing the pendulum, the fixed screw (6) must be screwed out, the disassemler could be inserted into the slot of pendulum rod block, and move screw rod to contact the surface of pendulum rod, the pendulum block could be withdraw out for changing required pendulum.
3. The contacted length between pendulum hanger and pendulum mechanism is about 3-4mm. (the product could not be adjusted, it is well for shipment). If it is necessary to adjust, the hanger (3) position would be moved.
4. When the pendulum has not hunge on the up-and-down device during the time of up-and-down, the operator should not moved and work aroung the pendulum to prevent dangerous from the accidental cut down.
5. The bearing at the ends of the pendulum has got oiled before selling out,so the user needs not oil it. After repairing and cleaning, drops of sewing sol or watching oil can be put. Other bearing can put Vaseline or butter.
6. The distance between the iron of electric-magnetic clutch (7) and magnetic yoke is 0.8-1.5mm. This has been adjusted when selling out. If the adjusting is needed, to open the cover (13) firstly, loosen the screw (15) of the nut (14),then insert a round rod into the round hole of the adjusting nut, move the adjusting nut or belt wheel so that the three steel balls can not contact with the surface of the magnetic yoke. In the case of cut-down the steel ball may rub the surface of the magnetic yoke, and may result the excessive loss of energy. So the screw of the adjusting nut must be tighten after the space is adjusted.
7. After the completion of the test, press pendulum button 3AN,the pendulum should put down on the position of the plumb and loosen the button, cut the power.

1. Reading and calculation

The function of the indication mechanism is to indicate the max and min of energy that absorbed by the specimen.
The following formulas are used to calculate the value of energy of specimen which done by the pendulum:
A_V= M(cosβ-cosα)
In the formula:
M --- The torch moment of the pendulum
α--- The up angle of the pendulum before the impact
β--- The raising angle of the pendulum after the breaking of the specimen
If the friction loss and the air resistance are ignored, the energy consumed in breaking the specimen is equal to the energy the pendulum has before impacting subtract the energy the pendulum left after impacting.
As the torque moment M of the impacting pendulum and the up angle of the pendulum α before impacting are constant, only if the raising angle β of pendulum after breaking specimen is known, the energy consumed in breaking specimen can be calculated by the above formula. The  A_V value of each raising angle β can be calculated by optical-electro coder and computer, at the same time, they can be display, save and print out. In order to visual display, we carve the A_V value of the raising angle β on the dial. Thus the energy consumed in breaking the specimen can be read directly from the computer or dial and need not to calculate. When the error value between the computer display data and dial pointer is within 5% of the maximum initial location capability, take the computer display data as standard.
As there is a groove in the specimen, the cross-section surface area is not equal to 100 mm²; therefore the value read in the scale after impacting means not the unit impacting toughness. To gain the a_V value of unit impacting toughness of the material, the data got after testing should be divided by the cross-section surface area of the specimen in the groove:
a_V=A_V/F(J/cm²)
F=0.8cm² when doing the impacting test of the standard specimen.





 

1. Troubles and Elimination

Troubles:	Reason:	Elimination
Pendulum does not move when pressing button "driving pendulum"	1. The belt is loosen 2.Trouble of power supply   3. Trouble of relay 1J, 4J or fine adjusting switch 1wk, 2wk	1.Tighten the belt   2. Check up the fuse
The hook dashes on the damping rod, the fine adjusting switch is in the loosen state, but the motor does not stop	1.The fine adjusting switch 1wk works unreliable or the circuit is broken 2. The relay 4J does not work 3. The contactor does not release.	1.Check up 1wk and 4J 2. Clean the iron of 1C contactor.
The hook dashes on the damping rod, the motor has stopped work, but the pendulum does not drop on the hook, press the pushbutton "impacting", the electric -magnetic clutch has been working but the pendulum does not "Releasing pendulum"	The iron of the electric-magnetic clutch (7) can't break away; 1. the end faces of the iron and the force of the key groove exceeds the spring force 2.The spring force is small or fatigue. 3.The electric brush contacts badly.	1.Open the cover (13) (fig.1), put a few drops of lubricating oil in the end face key and the key groove and move it with screw driver for a few times. 2. Change the spring. 3.Repair the electric brush.
Vibrates terribly when hanging up the pendulum.	1.the spring force of the damping rod is too small. 2.the space between the round top of the hook (8) and the damping rod  is too large.	1.change one new spring. 2.adjust the space, turn the board of the switch and the screw so as the damping rod reaches 0.1-0.5mm.
Vibrates terribly when set pendulum	1.the belt is loosen. 2.the screw on the upper of the motor (18) seat is not tighten. 3.the space of the worm gear transmission is too large or the central distance is too large.	1.Tighten squared bolt, and locknut. 2.Take off servo motor seat, adjust space of three top screw. If damage heavily or too big center distance, pls change worm wheel or worm pole.
Pendulum while hang locates at the left of plumb, combined to electromagnetic clutch, and clash very heavily.	Singal mussily, 1. touching clip and touching pin touch not well. 2. there is oil trail on the surface of touching clip and touching pin.	1.remove the parts touching clip and touching pin and clean them with acetone. 2.the ends gap of touching pin can be not face the contact surface of the groove of touching clip.
When releasing pendulum to vertical line position, not stop.	The toucher do not release.	Clean 2C toucher armature.

1. IMPACT SPECIMEN

For dimension of specimen and roughness,see below figure:
1.V type notch specimen


For detail requirement of specimen,see standard GB/T229-2007"Metal Charpy notch impact testing method".













2.U type notch specimen
     
For detail requirement of specimen,see standard GB/T229-2020Metal Charpy notch impact testing method
     
Fig1,Load frame construction diagram



1 / 3. Jaws   2.Span correcting block  4.Support
5.Compressure head  6.Impact knife  7.Screw


Fig.2 Span adjustment diagram
  







Fig3,Installation diagram




                       

     JB-500S

SEMI-AUTOMATIC IMPACT TESTING MACHINE

 

Certificate

Serials No.: 20230608D





















 
INSPECTION SHEET

NO.	USING THE PROOFING CHECKLIST			Allow the gap	conclusion
1	The pendulum plumb-lines impact blade and bearing support which the distance is 10 millimeter		Big swing	0-0.5
			Small swing
2	The pendulum side  beparallels swing plane		Big swing	100:0.1
			Small swing
3	pendulum roller center and sample center distance 750 mm			±0.75
4	Two pedestal supporting surface should be in the same plane		Horizontal bearing surface	0.05
			Vertical bearing surface
5	Two pedestal supporting surface should be perpendicular to the pendulum profile	Big swing	Horizontal bearing surface	100:0.1
			Vertical bearing surface
		Small swing	Horizontal bearing surface
			Vertical bearing surface
6	The pendulum and sample center should anastomosis		Big swing	±5
			Small swing
7	The pendulum torqueerror	Big swing	267.9492N.m	±0.4823N.m
		Small swing	133.9746N.m	±0.2412N.m
8	For geometric center and active pointer rotating center should be consistent			0.5
9	The pendulum empty strike when reactive readings for zero		Big swing	0.1%
			Small swing
10	The pendulum swing free which the energy loss		Big swing	5J
			Small swing	2.5J
11	pendulum roller space		Axial direction	0.2mm
			Radial direction	0.06mm
CONCLUSION: This machine after the inspection, achieves the GB/T3808-2007 "pendulum style impact test enginery inspection" national standard of technical requirements. And the biggest impact test enginery, machine working normally, various precision work properly maintain good. Random with accessories and technical documents ready. This product inspection, approved for release Qc minister: quality inspector: date: 2023.07

Packing List
 

Lot number	Name	Specification	QTY	note
1	host machine		1
2	The pendulum	Biger	1
		lesser	1
3	Span correcting block	L=40	1
4	samp lecentring device	L=40(V.U)	1
5	stripping attachment		1
6	solid wrench	S=30	1
7	socket head wrench	S=12	1
8	jaw	R1^*0^0.5	1	It has been installed.
9	protective screening		1
10	controlled box		1
11	specification		1
12	certificate of soundness		1
13	Packing List		1