Linear Actuators for Medical and Nursing Beds: Which Actuator Does What

A modern nursing bed is not one machine. It is four or five small machines working together: one lifts the back, one lifts the legs, one raises the whole bed, one tilts it, and on five-function beds one helps the patient turn or stand. Each of those movements is a linear actuator, and each actuator needs the right control box and handset behind it. This guide maps every movement on a medical or nursing bed to the actuator and controller that drives it, using the Zhiheng furniture-and-medical drive range we stock at HyHaven.

The movements, one by one

Back lift. The hardest-working actuator on the bed. It pushes against the combined weight of the frame section, mattress and the patient's upper body, hundreds of times a week. On our range this is the HH-LA-U9 or HH-LA-U10: 6,000 N of push force at 4 mm/s under load, 24V DC, with built-in limit switches and an IP54 sealed housing that shrugs off routine cleaning.

Leg lift. Same platform, usually a shorter stroke. Using the same actuator family for back and leg sections keeps spares simple: one model covers most positions on the bed. Strokes run from 100 to 400 mm in 50 mm steps, so the retracted length of each section can be matched to the frame.

Whole-bed lift and tilt. Height adjustment and Trendelenburg-style tilt also run on U9/U10 actuators on Zhiheng bed designs. Force is rarely the problem — 6,000 N is roughly 612 kg of push — the real constraints are retracted length and mounting points, which is why the dimension drawing on each product page matters more than the headline force.

Power-failure lowering. A care bed must never trap a patient in a raised position when the power fails. The HH-LA-U9-2 adds a hand-crank manual release to the U9 platform: staff can wind the section down by hand during an outage. For home-care beds especially, this is the difference between an inconvenience and an emergency.

Two control routes

Route 1: the five-function medical system (24V). The HH-CB-M07 control box drives up to five actuators plus a handset, with labelled sockets for turn over, back lift, leg lift, toilet and stand up functions, a built-in fuse and voice prompts. It pairs with the HH-HC-H07 handset — 14 keys covering every function, with an auto-turn timer, voice on/off and a built-in emergency stop key. One important note: the M07 runs on AC 220V mains input and outputs DC 24V, so this route suits 220V markets such as Europe; it does not run on 110V mains.

Route 2: the 29V system (up to four actuators). The HH-CB-M03 accepts 110–240V AC input, outputs 29V DC and drives one to four 29V-system actuators, paired with the HH-HC-H05 handset (up to 10 keys, up to IP66). This is the route Zhiheng's own five-function bed designs use, and the wider input range makes it the flexible option for export projects. For a single-actuator application, the smaller HH-CB-M02 covers one to two actuators.

The two routes are different systems. Actuators, control boxes and handsets must be matched within one route — if you are replacing one part of an existing bed, tell us what is already fitted and we will confirm compatibility before you order.

The two accessories caregivers actually ask for

A foot switch (HH-FS-01) lets a caregiver raise or lower a section while both hands stay on the patient — it works with the M02/M03 route and is sealed to IP45 for wet cleaning areas. An emergency stop switch (HH-ES-01) cuts actuator power instantly with a push-lock mushroom button and works across the M02, M03 and M07 systems; on a multi-function bed it is cheap insurance.

Before you order: four checks

1. Stroke and retracted length. Measure the section's travel and the space the closed actuator must fit into; the dimension drawing on each product page gives the retracted length.
2. Duty cycle. These 29V-system actuators are rated at a 10% duty cycle (max 2 minutes continuous) — right for bed positioning, which moves in short bursts.
3. Mains voltage. 220V-only (M07 route) or 110–240V (M03 route) decides the control system before anything else.
4. Failure behaviour. If the bed will hold a patient unattended, specify the manual-release U9-2 at least for the back section.

Prefer to start from a complete matched set instead of picking position by position? Our electric bed actuator systems overview lays out the nursing bed, five-function hospital bed and beauty bed configurations as packages.

Every actuator on this page carries a 12-month warranty. If you are building or refurbishing care beds and are not sure which route fits your frame, email your bed's section layout and mains market to support@hyhavenstore.com — we will map the actuators for you before you spend anything.

FAQ

Can I mix U9 and U10 actuators on one bed? Yes — they share the same force, speed and voltage platform; the difference is the mounting arrangement, so choose per section according to the frame.

What happens to a raised bed in a power cut? A standard actuator stops where it is and cannot be wound down by hand — the section stays raised until power returns. To lower a section manually during an outage, that section needs the manual-release HH-LA-U9-2.

Is the M07 system suitable for North America? No — the M07 takes AC 220V input only. For 110V markets, use the M03 route (110–240V input).

Are these actuators certified medical devices? They are drive components for bed manufacturers and refurbishers. The finished bed's certification is the bed manufacturer's responsibility; we publish the component specifications on each product page so your compliance team can assess them.