Ergonomic assembly workstations determine how stable cycle times are, how many errors occur, and how fit the team stays. When grasping paths are short, working heights fit, and loads are handled sensibly, strain goes down and quality stays consistent. This is your lever for productivity and safe workflows, without extensive rebuilding right at the start.
With clear target values, simple assessments, and quick variant comparisons, you get to decisions fast. Halocline helps you with this: you design stations in VR, walk through them, make grasping areas visible, try out positions and heights as variants, and assess workflows ergonomically, with no training required and without CAD data.
Well-designed stations reduce effort, search times, and regripping. Cycle time stays stable, and the error rate goes down. Shorter grasping paths save noticeable time per cycle, especially in small-parts assembly, and where overhead work disappears, rework often goes down too. At the same time, the risk of shoulder, neck, and back complaints drops, and with it the number of sick days.
Key terms briefly explained:
You can orient yourself by these target values:
These guardrails reduce strain and ensure repeatability within the cycle.
In Halocline, the planning platform for production layouts and workstations, you put these guardrails into practice directly. You build stations from library objects and move components, racks, and tables. Grasping area avatars show the optimal and maximum grasping area and the working planes for the body height you set, calculated according to DIN 33402-2 and DIN EN ISO 14738. You measure distances with the measuring tool, and the collision check secures clearances. If you run through the workflow in VR and record it, the ergonomics check rates the postures based on the key indicator method. You create variants as copies and record decisions with screenshots and measurements.
Small-parts placement: The grasping distance drops from 650 to 420 mm, a reduction of around 35 percent, and the shoulder angle falls below 55 degrees. With many grasps per cycle, this results in a noticeable time gain, with consistent quality.
Housing assembly with overhead screwing: A rotating fixture brings the work into the horizontal plane. The RULA score drops from 6 to 3, rework decreases by about 20 percent, and the cycle runs much more steadily.
Line with changing variants: Remote material supply causes 12 m of walking per cycle. With mobile supply, 4 m remain. Walking time drops by around two thirds, and variant changes run more smoothly.
Projects with Halocline show that this also pays off in reality: at Siemens in Karlsruhe, workstation design became 4x faster. Together with item, Sanner tested and optimized assembly workstations for medical technology in VR before they were built, achieving up to 20% shorter process time.
Grasping paths that are too long in the A area: They cost time and strain the shoulder. A common cause is flat small load carriers (KLT) placed far back without any tilt. The remedy is tilted compartments of about 10 to 15 degrees, fixed standard positions, and consistent assignment to A, B, and C. This keeps frequent parts within 350 to 450 mm of reach, while rare components move to the C zone and are fetched with aids.
Unfavorable working heights: They force shoulder raising or trunk flexion. With height-adjustable tables and stored positions, you hit the right height for fine or heavy work. Rotating and tilting devices bring screw points to eye and grasp height, so that overhead work disappears. Pay attention to an elbow angle of around 90 degrees, plus/minus 20 degrees, and a largely neutral wrist position.
Twisting and bending: Upper-body rotation beyond 45 degrees and repeated trunk flexion beyond 20 degrees increase the risk of complaints and errors. Rotating workpiece fixtures, symmetrical tool placement, and a clear grasp sequence reduce regripping and twisting. Micro-breaks, such as short relief after straining grasps, smooth out the load and stabilize quality over the shift.
Routes and collisions: These result from narrow aisles, crossing material flows, and badly placed carts. Plan clearances explicitly for shorter and taller people, route material without oncoming traffic, and keep lines of sight clear. In VR, you see these bottlenecks early, check safety distances, and move components until walking routes and grasping distances are right.
In the end, what counts is a consistent set of target values, traceable assessment, and fast iteration. Plan for the 5th to 95th percentile, keep the shoulder below 60 degrees and the trunk below 20 degrees, bundle frequent grasps within 350 to 450 mm of reach, and limit regular loads to under 10 kg. With Halocline, you check these guardrails before setup, save loops, and bring good ideas into implementation quickly.
Want to plan your assembly workstation ergonomically before you rebuild? Get started for free with Halocline Free and build your first workstation in 3D. For process analysis and the ergonomics check, get in touch and we'll show you the right scope.
