Steel Sheet Upender for 180 Degree Safety Turning: Chain Turner or C-Type Inverter

Executive summary This 10 s clip shows a beam-type chain turner rolling a large welded steel frame from a steep incline to almost flat. Frames like this hang well in chains. Steel sheets and plate stacks do not. Our equivalent solution for them is a C-type 180° steel sheet upender, rated up to 15 t, that clamps the stack hydraulically and turns it on the floor.

Table of Contents

What the clip shows

The clip is a vertical recording of about 10 s in a steel fabrication hall.

  • A long red beam hangs from an overhead runway. Chains drop from both ends of the beam and sling a large black welded steel frame.
  • 0–2 s: the frame starts at a steep incline and begins to roll.
  • 2–5 s: the frame keeps turning towards horizontal.
  • 5–9 s: the frame is almost flat and is lowered towards the floor.

On-screen captions name the machine type and typical work: steel structures, foundry flasks and cast machine-tool beds. The clip shows part of a turn, not a full 180°.

Why sheet stacks need clamping, not slings

A welded frame is one rigid body. Chains can roll it, because nothing inside the frame can move.

A stack of steel sheets is different:

  • The sheets can slide on each other. In a sling, the stack can fan out as it passes vertical.
  • Thin sheets bend where a chain bears on them, and the edge marks stay.
  • Coated or polished sheets scratch where they rub on chain links.

So for sheets and plate stacks, the load must be clamped as one block for the whole turn. That is what a C-type upender does.

Our equivalent solution: the C-type steel sheet upender

Our steel sheet upender is a C-type frame on the floor. The stack is driven or placed into the C, hydraulic cylinders clamp it, and a motor turns the C through 180°.

Data from our steel sheet upender page:

Item Value
Max. load 15 t
Load length 100–3000 mm
Load width 250–1850 mm
Load height 10–350 mm
Turning motor 2.5 kW
Hydraulic system 4.5 kW
Hydraulic cylinder OD 100 mm, double acting
Machine size approx. L3000 × W2200 × H2600 mm
Machine weight 4 t

Turning speed is adjustable. Like all our machines, it is configured per project, so the opening, clamp stroke and power follow your sheet range.

Chain turner or C-type upender: matching the load

Load Better fit Reason
Welded frames, machine bases chain turner or floor flipper rigid, can hang in slings
Steel sheet stacks C-type upender must be clamped as one block
Single heavy plates C-type upender no chain marks on the faces
Moulds and blocks floor flipper or upender sit flat on a table

For welded frames with a floor-mounted alternative, see our article on the big frame flipper for 180 degree turning.

Making a 180° turn safe

The riskiest moment in any 180° turn is the vertical point, where the weight moves from one support side to the other.

  • Clamp before turning. On the C-type upender, the hydraulic clamp closes on the stack before the C-frame turns.
  • Control the speed. Adjustable turning speed lets you slow down through the vertical point.
  • Keep the centre of gravity inside the C. Place the stack centred along its length.
  • Keep people clear. No one stands in the turning zone, whichever method you use.

Selection checklist for a steel sheet upender

  • Sheet or stack length, width and height, smallest and largest.
  • Heaviest stack weight.
  • Surface finish: bare, coated or polished.
  • Turning angle: 180°, or 90° for upending.
  • How the stack arrives: forklift, crane or roller conveyor.
  • Turns per shift and floor space at the turning point.

Controls and safety

The standards that apply depend on the destination market. For CE markets, ISO 12100 sets the risk-assessment method and EN 415-10 covers general requirements for packaging machines, which fixes guarding and the emergency-stop arrangement.

On our C-type upender, the hydraulic clamp holds the load during rotation. The turning area is fenced or marked to suit the layout of each project.

Engineering FAQ

Q: Is the machine in the clip a C-type upender? A: No. It is a beam-type chain turner, which rolls the load in chains. Our equivalent for sheets and plate stacks is the C-type steel sheet upender.

Q: What is the maximum load of our steel sheet upender? A: It handles up to 15 t, with loads up to 3000 mm long, 1850 mm wide and 350 mm high.

Q: How is the stack held during the turn? A: By double-acting hydraulic cylinders, OD 100 mm, which clamp it inside the C-frame while the motor turns it.

Q: Can the turning speed be changed? A: Yes. Turning speed is adjustable, so you can slow the turn through the vertical point.

Q: What drive power does the C-type upender use? A: A 2.5 kW turning motor and a 4.5 kW hydraulic system for the clamp, on the listed model.

Q: How much floor space does it need? A: The listed machine is approx. L3000 × W2200 × H2600 mm. Add access for the forklift or conveyor feeding it.

Next step

We size a steel sheet upender in three steps:

  1. Submit your layout drawing with the sheet or stack sizes, weights and feeding method, to info@fhopepack.com.
  2. Receive a proposal within 48 hours, with the C-frame opening, clamp range and turning time.
  3. Book a site survey so we confirm floor space, feeding direction and the turning zone.

Sources

  • Comparable machine in action: the video on YouTube (about 10 s)
  • C-type structure, 15 t, load size, motor, hydraulic system, cylinder, machine size and weight, adjustable speed: Steel sheet upender
  • Standards scope: ISO 12100:2010; EN 415-10:2014
  • Proposal timing: approved house CTA (proposal within 48 hours)

Last reviewed: 2026-10-06

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