1.The cylinder is made of high quality cast iron. 2.Double ways opening. 3.Hold-open:105, 90

Feature:l The cylinder is made of high quality cast iron .l Provided with door stop function and explosion--proof device .

l Max opening angle in each direction .l Standard can be chosen .

l Suitable for wooden ,glass and aluminum ect,all kinds of doors .

l Inside the frame : height can be adjusted within 4mm, width can be adjusted within 5mm between left and right length can be adjusted within 7mm. l It adopts low temperature anti-freezing hydraulic oil and the applicable ambient temperature can reach -20°C-+45°C .

Specifications:

Model of number	6040
Finish of panel	SSS
Finish of cement	Electrophoresis
Materials	iron
TECHNICAL INFO.&FUNCTION	EN3#
Closing force(N.m)0°-4°	18-26
Width of door(mm)max	1000mm
Weight of door(kg)max	100kg
Max open angel	130°
Hold open	105° or 90°
Closing speed adjustment	speed1:90°-25° speed2:25°-0°
Removable spindle	optional
Applicable temperature	-20°-45°
Weight	5.0 5.1   5.2   5.3
Dimension of cement box(mm)	305*108*40.5
Main body size
Passed durability test	500,000

double cylinder floor spring in china 6040 EN3