The document discusses paper roll handling and the importance of selecting the correct clamping force to prevent roll damage. It provides the following key points: 1) Paper rolls undergo many handling stages between the paper mill and printing machine, so specialized equipment is needed to prevent damage. 2) Both too high and too low clamping forces can damage paper rolls, causing out-of-roundness or rolls to slip. 3) The Force-Matic system is a fully mechanical pressure control that calculates and adjusts the optimal clamping force based on the weight and type of paper roll to prevent damage.

1. Force-Matic Fully Mechanical Pressure Control Roll Damage Prevention

2. REDUCED DAMAGE COSTS ARE OUR MISSION AND CUSTOMERS VISION DELIVERY FROM PAPER MILL TO ENDUSER PRINTER

3. 60 years experience in Paper Roll Handling!

4. The paper rolls may be handled up to 15 times before delivery to the customer ! The transport chain of forest products is often very long. A paper roll may require as many as 15 handling stages on its way from paper machine to the printing machine. This makes it essential to use well-chosen, well-maintained equipment dedicated to forest products handling. Paper handling in general

5. How to select the correct clamping force?

11. What is the correct clamping force?

13. Max clamping force according to weight of the roll: Paper quality Clamping factor Newsprint 1,0-1,6 Kraftliner 1,5-1,8 SC Printing paper 1,6-2,0 LWC print.paper/KCB Kemiart 1,7-2,2 Roll Tissue/Fluff Paper 1,1-1,3 For example: Total paper weight 4000 Kg x factor 1,3 = total pressure = 5200 kp What is correct clamping force ? Measuring and control of clamping force Selecting the correct clamping force according to handled paper quality

14. Always follow the paper mill’s instructions! Selecting the correct clamping force

15. Excessive clamping force is one of the main reasons causing paper roll out-of-roundness during the clamp handling. Clamping force must be adjusted to suit the requirements of the paper roll and the handling chain. This is especially important with paper grades which are prone to out-of-roundness damage. In principle each paper roll and each handling operation would require individual clamping force setting. This can only be done with an automatic, intelligent clamping force control. The Dilemma of Optimum Clamping Force F c F c F c F c F c F c F c F c ?

16. What is the correct clamping force? Too high clamping pressure • Rolls may deform • Roll cores may deform • Out-of-roundness

18. • Out-of-roundness is measured by the difference of radius • Measured in millimeters (mm) • Depending of the amount of handling times it gives different shape of damage What is the correct clamping force? Definition of out-of-roundness Too high clamping pressure

20. Too low clamping pressure • Rolls may drop • Rolls may slide • Rolls may telescope

22. Crimped edges at bottom of paper roll UPM 13.09.2006 Too low clamping pressure

23. Feel safe with us! We have all solutions for damage free handling with correct clamping force!

24. How to Select a Clamping Force Control System Clamping Factors when handling various paper grades Paper grade Clamping Factor k d 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 Newsprint Kraftliner Coated paperboard SC Printing Paper LWC Printing Paper / KCB KemiArt Tissue / Fluffy Paper Special Sensitive Paper

32. During normal lifting process weight of paper roll is calculated Fully Mechanical Pressure Control

33. Force-Matic function Clamping force kN Kg Calculation of required calmping force x kN = y bar Weight of paper roll

34. Force-Matic key function The system continuously solves a polynomial expression in the form of : P(x,y,z) = Ax+By+(C+D)z +E

35. Adjustment of clamping force according to selected clamping factor Fully Mechanical Pressure Control y bar

37. Bolzoni Auramo – Made by experts to the specialists Thank you for your attention