This testing machine, meets with test method GB/T 2812, is mainly used to measure and determine properties of shock absorption and penetration resistance of safely helmet. It is widely used inthe areas of supervision and inspection station of special personal protective devices, building research institute, testing station of construction engineering, electric power department and manufacturer of helmet, etc.

2. specification

1	Shock hammer	weight	5-5.01kg
		Hammer type	hemispheric
		Diameter	48mm
		material	45# steel
2	Penetration cone	Weight	3-3.05kg
		Angle of cone	60 degrees
		Diameter of cone tip	1mm
		Length	40mm
		Max. diameter	28mm
		Hardness	HRC45
3	Max. Height of shock hammer / penetration cone	1000mm, adjustable
4	Force measuring	Adopting dynamic force sensor, measuring range 0-20KN, min. frequency of force sensor 5kHZ, error of force within ±2%, min. reading value 1N
5	Special head form	1#, 2# alusil alloy head form for test, details see Pic.1 and Pic. 2
6	Electromagnet release point	Adjusted according to requirement
7	Controlling mode of shock hammer and penetration cone	By auto suction of electromagnetic to control the suspending and release of shock hammer and penetration cone
8	Basement	High anti-shock capability, can fix force sensor tightly
9	Alarming device for penetration resistance test	Auto alarming when penetration cone touch head form and light blinks at the same time
10	LED digital display	Min. reading value 1N, auto save max. force

Note: (0-83)mm is the contour height with top point of head form

Distance between each point on contour line and top point of head form ,see following:

A	0°	10°	20°	30°	40°	50°	60°	70°	80°	90°	100°	110°	120°	130°	140°	150°	160°	170°	180°
0	0
3	35	34.5	34.5	34.5	34.5	34	33	32.5	32	31	31	30	30	29	28.5	27	27.5	26.5	26.5
13	43.5	44	43.5	43.5	43	42.5	42.5	42	42	43	44	45	45	45	45	45.5	45.5	46	46.5
23	60.5	61	60	59	58.5	58	58	57	56	56	57	59	60.5	62	63	62	62	61.5	62.2
33	72	71	70	68.5	67.5	66	66	65	64	64	65	67.5	70	72	73	73	73	71.5	71
43	77	77.5	76.5	75	73	71	71	70	68.5	68.5	70	73	75.5	78	80	80	80	79	78
53	84	84	82	80	78	75.5	75.5	73	72	72	74	77	79	82	84	84	84	83	83
63	87	87	86	86	81	79	79	75	75	74	76	78.5	82.5	86	87	88	88	88.5	88.5
73	90	90	89	86.5	84.5	81.5	81.5	76	75	76	78	81	85	87.5	89	89.5	89.6	90	90
83-250	91.5	92.5	91	88	84.5	81.5	81.5	76	75	7+	78	81	85.5	89	91	92	92	92	93

Note: A means distance between contour line and top point of hear form. Unit is mm.

Note: (0-88mm is the contour height with top point of head form

Distance between each point on contour line and top point of head form ,see following:

A	0°	10°	20°	30°	40°	50°	60°	70°	80°	90°	100°	110°	120°	130°	140°	150°	160°	170°	180°
0	0
08	28.5	28	27	25.5	26	26.5	27	28	29	30	31	32	33	34	35	37	38.5	39.5	40
18	51.5	50.5	49	47.5	47	46.5	46.8	47	48	49	50.5	51	51.5	53	53.5	55	55.5	56.4	57
28	64	63	62	61.5	61	60	59.8	59.5	60.5	61.5	63	64	65	65.5	66.5	68	69	69	69
38	74	74	73	71	70.5	69.5	69	68.5	68.5	69.5	71	72.5	73.5	74.5	76	78	78.5	78.5	79
48	82	82	82	79.5	77	75	74	74	74	73.5	75	76	77.5	79.5	80.5	82	82.5	82.5	82
58	90	90	88.5	86	82	78.5	76.5	76	77	77.5	78.5	80.5	83	86.5	89	90	90.5	89.5	89.6
68	95	94.5	92.5	91	86	83	80.5	79.5	79.5	80	81	83	83	88	89	91.5	91.5	91.5	91
78	98.5	98	96	93	88	84	82.5	81	81	81	81.5	83	86	89	91	92	93	93.5	92
8-250	99	99	97.5	94	89.5	85.5	83.5	82.5	82	82	83	84	87	90	92.5	94	94.5	95	94

Other equipment for helmet testing

JM-2 helmet ultraviolet light cabinet

1. introduction

It is special for the ultraviolet light treatment of helmet, widely used in areas of supervision and inspection station of special personal protective devices, building research institute, testing station of construction engineering and manufacturer of helmet, etc.

2.specification

1	Source of ultraviolet light	450W high pressure Short pulse xenon lamp
2	Cooling mode	Air cooling, to make sure inside temperature is lower than 60℃
3	Precision of temperature sensor	0.2%
4	Lighting time and its precision	0-999 hours, with precision of 1 min
5	Max. treating quantity	1-14 pcs helmet
6	Materials of electric control box	Cold rolled sheet
7	Material of testing box	Stainless steel
8	Timing function	Auto stop timing when xenon lamp is off
9	Protecting functions	Auto cut electric power when device work wrong

JM-3 water immersion cabinet for helmet

Specification

1	Temperature at constant temperature water immersion box	20℃±1℃
2	Low temperature	-20℃±1℃ or -10℃±1℃
3	Timing range of digital timer	0-99.99 hour
4	Temperature setting range	-20℃ to +20℃
5	Special specimen frame	For fix helmet of different specification
6	Temperature controller	PID auto control
7	Heating system	Stainless steel finned type heating system

JM-4 vertical wearing height measuring device for helmet

Introductions

1. equip with 1# and 2# head form

2.high precision horizontal digital caliper

3.accuracy of measurement:1mm, min. reading value:0.01mm

JM-5 high temperature box for helmet

Specification:

1. test temperature:50℃±2℃

2. temperature range:0-300℃

3.PID auto controller for temperature

4. time setting range:0-99.99 hours

JM-6 helmet lateral rigidity tester

1.introduction

It is special for determine and measuring chin strap strength and lateral anti-compression capabilities of helmet.

2.Specification

LED digital displayer display max. force at real time, auto save max. force
Force measuring range:0-750N, precision 1%
LED digital displayer displays distance at real time
Displacement measuring range:100mm, precision:0.1mm
Time range:0-99 min, precision:0.1s
Stainless steel rod, move up and down freely, operate easily and conveniently
High precision distance measuring device, display distance between two plates at real time, resolution is 0.1mm
Up and low limit position protecting functions, alarming while arrive at up or low limit position

Product Tags:

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