Can this be used for a king size mattress

I wouldn't know, I used it for a full size

where are the instructions for these ?

Had to go online to figure them out, THEN had to have a handyman do it, THEN they weren't strong enough to hold up my 5th-wheel bed to access storage underneath. Much waste of time and money.

I purchased one of these but need stronger pneumatics, as the bed is heavier than expected. Can I purchase just a heavier piston? If so, where?

The bed that I built is quite heavy and it supports me for my needs. What I did add was a cap so that it does not go down alone. You can search for these more consistently as these in particular are good.

Is the 30 kg rating the capacity of each strut or the pair of struts together?

It came as a pair. However, I would not recommend these. They arrived with no instructions and would not install properly on my RV queen bed. I ended up with struts on each side instead.

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Dyna-Living 4.6FT Hydraulic Bed Lift Mechanism 286.6-319.7LBS Load Capacity | Platform Bed Lift Mechanism Gas Spring RV Bed Lift Kit, Heavy Duty Hydraulic Lift Bed for King Size, Queen Bed, Storage Box

Dyna-Living 4.6FT Hydraulic Bed Lift Mechanism 286.6-319.7LBS Load Capacity | Platform Bed Lift Mechanism Gas Spring RV Bed Lift Kit, Heavy Duty Hydraulic Lift Bed for King Size, Queen Bed, Storage Box

Product ID: 536907780

Details

Material
High-quality
Product Dimensions
55.12"W x
Size
Special Feature
Adjustable
Style
Modern

💪286.6-319.7 lbs load capacity

📏4.6FT / 140cm bed lift span

⚙️High-quality gas spring with silent buffer

345491CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛏️ Elevate your space, lift your lifestyle!

HEAVY DUTY STRENGTH - Supports up to 319.7 lbs effortlessly—built for your king or queen size mattress.
SPACIOUS LIFT RANGE - 4.6FT wide mechanism perfectly fits standard queen beds and storage sofas.
DURABILITY MEETS DESIGN - Crafted from thick cold-rolled steel with anti-corrosion finish for long-lasting reliability.
EFFORTLESS INSTALLATION - Includes screws and simple setup—transform your bed into a sleek storage powerhouse in minutes.
WHISPER QUIET OPERATION - Advanced gas springs with mute buffer ensure smooth, noiseless lifting every time.

The Dyna-Living 4.6FT Hydraulic Bed Lift Mechanism is a robust, easy-to-install solution designed for queen and king size beds. Featuring a heavy-duty load capacity of up to 319.7 lbs, silent gas spring technology, and durable cold-rolled steel construction, it transforms your bed into a stylish storage hub while ensuring smooth, noiseless operation.

Specifications

ASIN	B0BTLBWXVG
Assembly Instructions Description	No assembly instructions included
Best Sellers Rank	#409,287 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #266 in Bed Replacement Parts
Brand Name	Dyna-Living
Color	Black
Compatible With Mattress Size	Queen Size
Customer Reviews	4.2 4.2 out of 5 stars (60)
Finish Types	Painted
Form Factor	Bed Lift Mechanism
Furniture Finish	Black
Headboard Material	High-quality Cold Rolled Steel
Included Components	Screws
Item Depth	5 inches
Item Dimensions	55.2 x 55.12 x 55.12 inches
Item Dimensions L x W x H	55.12"W x 55.12"H
Manufacturer	Dyna-Living
Manufacturer Part Number	BI0TOP06844
Material Type	High-quality Cold Rolled Steel
Maximum Weight Recommendation	120 kg
Model Number	BI0TOP06844
Number of Items	1
Number of Packs	2
Other Special Features of the Product	Adjustable, Storage
Product Care Instructions	Dry Clean Only
Size	286.6LBS/4.6FT
Storage Options	Under-bed storage
Style Name	Modern
Target Audience	Adults with heavy furniture or mobility needs
Unit Count	1 Count

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