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Guided
The component is away from its intended path and needs directional correction.
Hand Safety First® · Mining Hand-Exposure Series
Pinch Point Hazards During Heavy Load Positioning: How to Keep Hands Out
Heavy load positioning creates one of the most serious pinch point hazards in mining, maintenance and industrial lifting work. The risk becomes concentrated when a moving component approaches a fixed surface while a worker is still using their hands to guide, stabilise or align it.
Moving Load
+
Fixed Structure
+
Worker's Hand
The important question is not only “How do we tell workers to keep their hands out?” It is: “How can the load still be positioned accurately without placing the worker’s hand inside the closing gap?”
The Exposure Mechanism
What Is a Pinch Point During Heavy Load Positioning?
A pinch point develops when part of the worker’s body can become trapped between objects that are moving toward each other, or between a moving object and a fixed surface.
During heavy load positioning, the typical exposure is:
THE LOAD IS MOVING
HAND
Closing Gap
THE RECEIVING SURFACE IS FIXED
The worker’s hand is being used to control the load between them. As the load approaches its destination, the gap closes.
The Critical Moment
“Moving load + fixed surface + worker’s hand = a critical pinch/crush exposure during the load journey.”
At landing, the space occupied by the worker’s hand can reduce all the way to zero when the load contacts its receiving surface. The issue is not only the movement of the load. It is the position of the hand when that gap disappears.
Find the Hand
Why Do Workers Put Their Hands Near Heavy Loads?
Workers usually place their hands near a load because a real function still needs to be performed. Effective pinch-point prevention should begin by identifying that function—not simply by telling the worker to remove the hand.
≡
Stabilised
The load is rotating, drifting or moving unexpectedly and needs to be steadied.
⊕
Aligned
The component must line up with a mating point, support, bore, trailer position or installation location.
◎
Positioned
The load is almost in place, but small corrections are still required before landing or seating.
The Engineering Question
The problem is not that these functions are unnecessary. The problem is when the worker’s hand becomes the only available interface for performing them.
Loading, Unloading & Heavy Load Positioning
The Final Approach Is Where Pinch Point Exposure Increases
The final metres before landing deserve special attention. The load is slowing, the crane operator is making finer corrections, workers are often closer to the load, and the receiving surface is getting closer.
The load can still drift laterally, rotate or respond to a crane correction. At the same time, the available hand space is narrowing.
Why Exposure Concentrates
- The load is slowing but is still moving.
- Fine corrections are being made.
- Workers are at their closest to the load.
- The receiving surface is approaching.
- The hand space is becoming smaller.
Lateral Correction
The load is slightly off its landing point and requires directional correction before descending further.
Rotation Arrest
The load develops a slow rotation and the worker attempts to stop it before the landing moment.
Drift Control
The load drifts toward an obstruction or away from the landing mark and needs redirection.
The Key Principle
“Control must be maintained. The question is whether a stand-off method can provide that control from a position that keeps the hand out of the closing gap between load and landing surface.”
HSF Doctrine
The Last 300 mm: Where Precision Can Create Exposure
300
Millimetres
“Just put your hand there and move it slightly.”
A load may travel several metres without the worker needing to touch it. But the final few hundred millimetres can be different.
The component is now at working height, close to its receiving surface, demanding precision and moving through a progressively smaller space.
The natural response can be to move closer and use the hand for precise guidance. That small correction can place the hand in the most hazardous position in the task.
The Last 300 mm Rule™
The need for precision rises as the available clearance falls.
The positioning method should already keep the hand away from the closing gap before the final contact or seating moment begins.
The Last 300 mm Rule™ — HSF Doctrine
“The last 300 mm of load travel is not the moment to rely on instinct. It is the moment where the engineering must be most reliable.”
Landing the Load
Why “Pull Your Hand Away Before It Lands” Is Not Enough
A common assumption is that the worker can simply move their hand away at the last moment. That approach depends on several things happening perfectly.
Reflex-Dependent Method
- The worker must see the movement.
- They must recognise the closing gap.
- They must react quickly enough.
- They must have space to withdraw.
- The load must not shift unexpectedly during that time.
Engineering Direction
Move the control point before the gap closes.
The better approach is to place the worker’s control point outside the pinch zone before the landing moment occurs.
Change the Question
Not “Can the worker remove the hand quickly enough?” but “Why is the hand inside the closing gap in the first place?”
Common Exposure Scenarios
Common Pinch Point Hazards During Load Positioning
Load Against Trailer Deck
A crane lowers a heavy component onto a truck or flatbed trailer. The worker keeps their hands on the component to guide final position. The trailer deck is fixed. The component descends. The hand is between them. As the component lands, the gap disappears.
Load Against Structural Steel
A fabricated component is positioned beside a beam, frame or steel structure. A small swing or lateral shift can trap a hand that is being used to stop rotation or make a final correction.
Component Against Machine Frame
Pumps, motors, gearboxes, wheel assemblies and other heavy parts may be crane-supported while workers guide them into or out of position. Alignment can become a pinch-point exposure when the hand becomes the means of fine positioning.
Component During Reinstallation
Components may need to mate with bolt holes, flanges, mounting surfaces, brackets, shafts, guides or supports. The closer the component gets to its final position, the stronger the temptation to physically guide it.
A Critical Distinction
Heavy Load Pinch Points Are Not Only About Load Weight
A large load obviously contains significant potential energy. But during crane-assisted component handling, the exposure is not simply the weight of the component.
What Actually Creates the Hand Exposure
It is what the worker must do with their hands while the crane or hoist supports the component.
A crane may be carrying the weight safely. The lifting arrangement may be correct. But a hand can still enter a pinch zone because the load needs guidance, stabilisation or alignment.
That is why load positioning deserves its own hand-safety review.
Engineering Sequence
How Can Pinch Point Injuries Be Prevented During Load Positioning?
The objective is to remove the hand from the closing gap without removing the worker’s ability to control the task.
1
Observe the Task
Watch the complete approach, landing and final adjustment.
2
Find the Hand
Identify exactly where the worker places their hand.
3
Name the Function
Guide, push, pull, stabilise or align?
4
Identify the Gap
What two surfaces can close on the hand?
5
Move the Control Point
Can control be provided from outside the pinch zone?
6
Application Review
Check geometry, weight, access and landing conditions.
7
Trial & Validate
Confirm the function remains and the hand position changes.
Preserve the Function · Move the Hand
Stand-Off Load Positioning: Preserve Control Without Hand Contact
In suitable applications, a stand-off push/pull or guidance tool can allow the worker to apply directional correction while keeping their hands away from the load surface.
The goal is not simply distance. The goal is to move the point where the worker provides control away from the pinch point.
Stand-Off Control May Help
- Guide the component laterally.
- Correct drift.
- Stop slow rotation.
- Control the final approach.
- Assist with alignment.
- Maintain directional control during landing.
Control Without Entering the Closing Gap
Stand-off guidance can allow the worker to feel and correct load movement without placing part of the body in the path of the descending component.
Control Method Selection
Push/Pull Tools and Taglines Do Different Jobs
Tagline
Control Over Distance
A tagline may be appropriate where the main requirement is rotational or directional control over a greater distance, especially during crane travel.
- Flexible interface.
- Greater worker-to-load distance.
- Useful for rotational/directional control.
- Better suited to long-travel lifts.
Rigid / Semi-Rigid Stand-Off
Fine Final Positioning
A rigid or semi-rigid push/pull method may be better suited to fine positional guidance during final approach, seating and landing.
- Direct positional feedback.
- Moderate stand-off distance.
- More precise final placement.
- Useful for short-travel and workshop positioning.
Important: These methods should not be treated as interchangeable. The control requirement,
load geometry, access and landing configuration must determine the intervention.
Application Before Product
Do Not Start With the Product
A heavy load does not automatically mean one particular tool is suitable. Different load geometries, control requirements and access conditions require different interfaces.
Geometry
Different Objects Behave Differently
Fabricated structures, pumps, motors, plates, cylindrical components, pipes and gearboxes do not create the same control problem.
Access
Stand-Off Must Be Achievable
The working position, surrounding structures and landing geometry determine whether a safer control position can actually be maintained.
Control
Name the Required Function
Guiding, stabilising, pushing, pulling and aligning can require different types of intervention.
Correct Sequence
Understand the exposure first. Then select the intervention.
Before the Next Crane-Assisted Positioning Task
A Simple Pinch Point Check for Heavy Load Positioning
Question 1Where will the worker’s hands be during final positioning?
Question 2What fixed surface is the load approaching?
Question 3What function are the hands providing?
Question 4Can the function be performed from outside the closing gap?
Question 5Has the method been reviewed under actual site conditions?
If the worker must still place a hand between a moving load and a fixed structure to complete the task, the exposure deserves further review.
Always Required
Application Review Is Essential
A positioning method that works on one load may not work on another. The purpose of application review is to determine whether the proposed method fits the real task—not to force every task to fit a particular tool.
Object / LoadWhat is being positioned?
GeometryIs it flat, cylindrical, asymmetric, long or irregular?
Weight & Centre of GravityHow will the component respond to correction?
Movement TypeSuspended, sliding, rolling or already partially seated?
Control RequiredGuide, stabilise, push, pull or align?
AccessCan a safer stand-off position actually be achieved?
Landing GeometryWhere will the closing pinch zones form?
Surrounding StructuresWhat beams, supports, frames, guards or machinery restrict movement?
Operator PositionWhere will the worker stand while control is applied?
Trial ResultDid the method preserve control while meaningfully changing hand position?
A confirmed incompatibility is also a valid engineering result. Not every load, access geometry or
positioning task will suit a stand-off method.
The Principle to Remember
Pinch/Crush Exposure During Load Positioning
Moving Load + Fixed Structure + Worker’s Hand = Pinch/Crush Exposure
01
Find the hand.
02
Identify the function.
03
Identify the closing gap.
04
Move the control point away.
The load may need control. The component may need precise positioning. The final correction may still be necessary. But the worker’s hand does not automatically have to be the interface that provides that control.
HSF Field Application Guide · First Edition 2026
Explore the Complete Mining Field Application Guide
Pinch points during load positioning are only one part of the wider hand-exposure problem in mining. The complete guide also examines suspended-load control, loading and unloading, the Last 300 mm, workshop maintenance, component removal and reinstallation, mobile equipment, fixed plant, tubular handling, application review, controlled trials and site standardisation.
Hand Exposure in Mining — Engineering the Hand Out of Lifting, Handling, Positioning & Maintenance Tasks
Related Mining Safety Article
Suspended Load Safety in Mining
How to Keep Hands Away During Crane Lifts →
Frequently Asked Questions
Pinch Point Hazards & Heavy Load Positioning FAQs
What are pinch point hazards during heavy load positioning?
A pinch point occurs when a worker’s hand or another body part can become trapped between a moving load and a fixed surface. During load positioning, this can happen as a component approaches a trailer deck, machine frame, foundation, rack or mating surface.
Why are pinch points common during final load positioning?
The final positioning phase requires greater precision. Workers may move closer to the load and use their hands for small corrections while the space between the load and receiving surface is becoming smaller.
How can pinch point injuries be prevented during crane lifts?
Start by identifying where workers place their hands and what function those hands are performing. Where the application permits, use a suitable method that preserves guidance, stabilisation or alignment while moving the worker’s hands away from the closing gap.
What is the Last 300 mm Rule™?
The Last 300 mm Rule™ identifies final approach and positioning as a particularly critical hand-exposure phase because the need for precision increases as the load moves closer to its landing or mating surface.
What is the main pinch point during truck loading and unloading?
A common exposure occurs when a heavy component is lowered toward a trailer deck while a worker keeps their hands on the component to guide its position. The load is moving, the trailer deck is fixed, and the hand may be inside the closing gap.
Are push/pull tools suitable for every heavy load positioning task?
No. Suitability depends on factors including load geometry, weight, centre of gravity, access, crane configuration and landing geometry. An application review is required before selecting and trialling a method.