Technical specifications, Mighty mule 600 gate opener, Drive – Mighty Mule MM600ET-PRO User Manual
Page 12: Power, Control, Operational capacity

Technical Specifications
9
Mighty Mule 600 Gate Opener
DRIVE
• Low friction screw drive (linear actuator) rated for -5 ºF
to	+160	ºF	(-20	ºC	to	+71	ºC).	Use	of	heater	bands	on	arm	
and control box will enhance performance in extreme cold 
temperatures.
• Powered by a 12 V motor with integral case hardened steel
gear reducer. Motor speed reduced to 260 rpm. Generates 
680 ft. lb. of torque at 12 V.
• Maximum opening arc of 110º. Approximate opening time
(90º): 20 seconds, depending on weight of gate.
POWER
• The system is powered by a 12 Volt lawn tractor or auto-
motive battery (not included).
• Battery charge is maintained by a 120 Vac, 18 Vac output
transformer rectified to 14.5 Vdc (40 VA) through the GTO 
control board. Blade-style control board fuse is rated for 
15 A.
NOTE: The transformer should not be directly
connected to any battery. Do not replace fuses with 
higher ampere rated fuses; doing so will void your 
warranty and may damage your control board.
• OPTIONAL: Battery charge is maintained by GTO Solar
Panel Charger: float voltage of 14.5 Vdc output from a 
10-7/8” x 10-1/2”solar panel. Generates minimum of 5 W 
at 300 mA. A gated diode on the control board prevents 
battery discharge.
CONTROL
• GTO microprocessor-based control board is set for single
leaf, pull-to-open gate installations. DIP switches can be 
adjusted to accommodate an optional kit for push-to-open 
gates (see Accessory Catalog).
•	Control	board	has	temperature	compensated	circuits.
•		A	circuit	on	the	control	board	regulates	charging.	“Sleep	
draw” is 25 mA; “active draw” is 2 to 5 A.
•	Auto-memorization	of	digital	transmitter	code.
•	GTO	remote-mounted	RF	receiver	tuned	to	318	MHz.
•		Operator	length	with	push-pull	tube	fully	retracted	is	 
40-1/4” mounting point to mounting point. Max stroke 22”.
• Adjustable auto-close timer (3 to 120 s), and obstruction
sensitivity.
• Power terminal block accommodates a transformer or solar
panels. NOTE: Do not use solar panel and transformer 
at the same time.
•	DIP	switches	simplify	setup	of	gate	operator.
•		Accessory	terminal	block	fully	compatible	with	push	 
button controls, digital keypads, safety loops, etc.
• Control board allows connection of safety edge sensors
and photoelectric sensors.
• Audio entrapment alarm sounds if unit encounters an
obstruction twice while opening or closing.
OPERATIONAL CAPACITY
• The Gate Capacity Chart shows approximate cycles, per
day, you can expect from the Mighty Mule 600 Automatic 
Gate Operator when powered with a transformer. Actual 
cycles may vary slightly depending upon the type and 
condition of gate and installation.
Gate W
eight
Gate Length
Number of Cycles* Per Day
Mighty Mule 600 Gate Capacity /Cycle Chart
Estimated number of daily cycles, based on use with a transformer and one(1) 12 Volt battery.
850 lbs.
750 lbs.
650 lbs.
550 lbs.
450 lbs.
350 lbs.
250 lbs.
150 lbs.
100 lbs.
50 lbs.
135
145
155
165
175
185
195
205
215
225
5’ - 6’
125
135
145
155
165
175
185
195
205
215
8’
125
135
145
155
165
175
185
195
205
10’
125
135
145
155
165
175
185
195
12’
125
135
145
155
165
175
185
14’
125
135
145
155
165
175
16’
NR
NR
NR
NR
NR
125
135
145
155
165
18’
NR
NR
NR
NR
NR
NR
NR
NR
NR
NR
NOTE: “NR” indicates this size 
and weight combination is not 
recommended for the
Mighty Mule 600.
NOTE: Ball bearing hinges 
should be used on all gates 
weighing over 250 lb.
To determine the number of cycles the gate operator will perform using solar panels, please see the specifications
listed on page 23 or call (800) 543-1236 or (850) 575-4144 for more information.
* An operation cycle is one full opening and closing of the gate.
These specifications are subject to change without notice.
