---
title: "What is the duty cycle of a screw jack?"
url: "https://zimm.com/what-is-the-duty-cycle-of-a-screw-jack/"
datePublished: "2026-06-03T13:33:27+00:00"
dateModified: "2026-06-25T08:24:59+00:00"
author: Florian Wenger
lang: en
canonical: "https://zimm.com/what-is-the-duty-cycle-of-a-screw-jack/"
markdown: "https://zimm.com/ai/post/what-is-the-duty-cycle-of-a-screw-jack.md"
categories: Podcasts
image: "https://zimm.com/wp-content/uploads/2026/06/zimm-podcast-screw-jacks-duty-cycle-parameters-design.png"
---

https://youtu.be/2koyxyqbJS0?si=wvFB6khfpt7yjaCX

The duty cycle describes the ratio of operating time to idle time and is specified as a percentage. At a duty cycle of 20%, a screw jack operates for 12 minutes within one hour and remains idle for 48 minutes.

#### Which factors influence the duty cycle?

The influencing factors are:

- high loads on the screw jack
- high speeds
- the choice of screw type

High loads mean high friction. High friction is associated with high heat generation and influences the duty cycle. High speeds have a similar effect. The higher the screw jack speed, the higher the friction and heat generation.

#### What role does the screw type play?

The choice of screw type also influences the duty cycle. This includes the selection between:

- ball screw
- trapezoidal screw

### Further links

## Videos

### Was ist die Einschaltdauer beim Spindelhubgetriebe?

In this video, viewers will learn about the duty cycle of a screw jack, including how operating and idle times affect performance and the factors that influence its efficiency.

- [Watch on YouTube](https://www.youtube.com/watch?v=2koyxyqbJS0)