Rotational lining, HDPE / PP Roto Lining, HALAR / PVDF Roto Lining, ETFE / PFA Roto Lining India

"First Company to Introduce Rotolining Technology in India"

"Pioneer in Fluoropolymer Coating Since 1988"

Roto Lining Of HDPE / PP / PVDF / HALAR / ETFE / PFA

It is a computer controlled lining technology using rotational movement of equipment along with sintering process. This process creates seamless lining with virtually uniform lining thickness from 500 microns to 6mm Roto lining of HDPE, PP, PVDF, HALAR , ETFE , FEP, PFA is available in natural, FDA or Antistatic Conductive fnish.

Advantages of Roto Lining

Better Chemical Resistance as natural Polymer is used and is heated one time, not like repeated heating in Coating so better properties of polymer
Better bonding of lining to equipment because of centrifugal action of rotating movement & better life as direct bonding to equipment without adhesive.
Any thickness of lining is possible from 500 microns to 6mm in single heating.
FAST Delivery as quick completion of lining.
Mono block type tanks & Receivers without main body ange can be lined.
Seamless construction without any weld joints.
Suitable for full vacuum.
Suitable for heat transfer application.
Antistatic , conductive , FDA Lining available.
Minor repair / touch up possible at site.

Roto Lining Technique

Preparation of the object to be lined
Inspection of the parts to be lined

The parts to be processed are checked before being lined according to the construction guidelines DIN EN 14879-1. The radiuses have to be properly rounded off and welding seams have to be cleanly ground. No welding beads are allowed to remain.
Thermal degreasing

Before the lining process, greasy or oily residues have to be removed, as these can influence the adhesion of the lining onto the carrier material.
Preparation of the object and roughing up the surface

In order to achieve adhesion, the parts are first sandblasted with highly purified aluminium oxide.
Rotational sinter lining

The components are fixed into a clamping device and filled with the appropriate material. The lining temperature and rotational speed are individually set.
Finishing

Mechanical processing of the sealed surface.
Inspection and quality control

The components are inspected visually for appearance, layer thickness, pore impermeability and, if necessary, electrical conductivity, and an inspection certificate 3.1 according to DIN EN 10204 is issued. All test procedures are documented.
Packaging and shipment

COMPARED WITH COATING

Thicker Lining Possible Upto 6 mm
Uniform Lining Thickness
Better Chemical resistance as polymer heated only once above its melting point.
Economical as less wastage of material
Longer pipes can be lined from inside
No over spray on outside surface
Less Delivery Time

COMPARED WITH SHEET LINING

No welding line / Seamless surface
Better Bonding with metal without air gap
Better operating Temperature up to 200 C
Heat transfer is possible
Suitable for full vacuum
Better purity of product as no adhesive is used
Higher operating pressure for equipment
Available Antistatic Conductive Lining with
Resistance of 10 e 4 to 10 e 8 OHMS
Less Delivery Time

Applications of Lining

1.	Lined Centrifuges	Top discharge / Lifting Bag / Bottom Discharge / Peeler
2.	Lined Storage Tanks	Vertical / Horizontal / ML Tank / Dosing Tank / Jacketed Receiver
3.	Lined Filters	ANFD / Nutsche Filter / Basket Filter / Cartridge Filter / Bag Filter
4.	Lined Dryers	VTD / FD / RCVD / ATFD
5.	Lined Reactors	For HF / High Alkaline / Abrasive application
6.	Lined Mixers	Nauta / Ribbon Blender / Polygonal Blender / Agitator / Static Mixer
7.	Lined Columns	Distillation / Mist Elliminator / Scrubber / Absorber
8.	Lined GLR Spares	Agitator / Top Dish / Bottom Shell / Manhole Cover / Protection Ring / Flush bottom Valve / Thermowell / NRV
9.	Lined Heat Exchangers	Shell & Tube / U Tube / Double Jacketed / Coil / Plate Type
10.	Lined Valves	Diaphragm / Ball / Butter Fly
11.	Lined Pipes & Fittings	Standard / Jacketed Pipe
12.	Lined Pumps	Centrifugal / Diaphragm / Metering / Magnetic
13.	Lined Blowers	Impeller / Casing

COMPARISON OF PROPERTIES OF POLYMERS

The important properties to be considered of lining are as follow

Material	SpecificGravity	MeltingPointC	Max working temprature C	HardnessShore	ChemicalResistance	AbrasionResistance	RawMaterialCost
PFA	2.15	305	200	D-64	Excellent	poor	Expensive
FEP	2.15	265	180	D-55	Excellent	poor	Expensive
ETFE	1.74	245	120	D-63-72	Excellent-1	Excellent	Moderate
ECTFE(Halar)	1.68	221	100	D-75	Excellent-1	Excellent	Moderate
PVDF	1.77	165	80	D-75-80	Excellent-2	Excellent	Moderate
PP	0.942	155	80	D-58	Good 3	Supreme	Low Cost
HDPE	0.96	105	60	D-44	Good 4	Good	Lowest Cost

Attacked by strong oxidizing agents and hot amines (For ETFE & HALAR)
Resistant to acids and bases ; dissolved by polar organics (For PVDF)
Resistant to acids and bases ; attacked by strong oxidizing agents (For PP)
Resistant to dilute acids and bases; attacked by strong oxidizing agents (For HDPE)