Hydraulic Hatch Lifter Self Contained with an 18" Stroke 

HL18HD consists of a Hydraulic Pump Mounted on a Cylinder and totally Self Contained
Cylinder Tube is Aircraft Quality 6063T832 Hard Coat Anodized Aluminum. The Rod is 5/8" Stainless Steel with an Aluminum Clevis
Cylinder Length is 26" on centers Retracted with an 18"Stroke
The Extended Length is 44"
The 12 Volt DC Motor is SAE J1171Marine 2-Wire Permanent Magnet type
The Maximum Hatch weight is 500 Pounds
For larger boats with Heavier Hatches up to 1000 Pounds we recommend using 2 Cylinders and 1 Heavy Duty Hydraulic Pump.