Three-roll calender

The three-roll calender is one of the core equipment in the rubber and plastics industry. It presses warmed rubber compound into uniform thin sheets through three relatively rotating rollers, or applies single-sided frictioning or coating on cord or canvas. It can also be used for the production of rubber sheets such as tire inner liners. It is used for the production of rubber products such as conveyor belts, rubber sheets, tire inner liners, coated cord fabrics, frictioning and coating of rubber hoses and belts, as well as seals, gaskets, and waterproof materials.

Product Features: It adopts three high-strength alloy chilled cast iron/forged alloy steel rollers. The roller surface temperature is adjusted by an automatic temperature control system. The roller spacing is automatically adjusted by a high-precision electric/hydraulic gap adjustment system. It is equipped with bearing clearance elimination and crown compensation devices.

Advantages: This machine features uniform product thickness, high production efficiency, stable operation, strong process adaptability, energy-saving and environmentally friendly design, and intelligent monitoring and convenient maintenance.

Application: The three-roll calender is mainly used for calendering rubber sheets and for coating and frictioning textiles. Rubber calenders include two-roll, three-roll, four-roll, and five-roll types, among which the three-roll and four-roll calenders are the most widely used. The three-roll calender is used for sheeting, single-sided frictioning or coating, or two units in series for double-sided coating; the four-roll calender is widely used in tire factories for double-sided coating of cord fabric, while the five-roll calender is rarely used at present.

Structural Features of Three-roll Calender:

1. The base is an integral welded base, which has been annealed for good stability.

2. The bearings at both ends of the roller are rolling bearings, resulting in high precision of the produced rubber sheet and long service life of the equipment.

3. The lubrication method is thin oil lubrication. If the lubrication system is not started, the main machine is not allowed to run, featuring a lubrication protection function.

4. The gap adjustment method is electric adjustment or manual adjustment.

5. The roller material is chilled alloy cast iron, and the surface smoothness can reach a mirror finish according to requirements. The reducer is a hard-tooth surface square box reducer with long service life and low noise.

Main Technical Specification

Item	Model XY-3I(Φ) 230×630	Model XY-3I(Φ) 252×720	Model XY-3I(Φ) 300×900	Model XY-3I(Φ) 360×1120	Model XY-3I(Φ) 400×1200	Model XY-3I(Φ) 450×1400	Model XY-3I(Φ) 500×1500	Model XY-3I(Φ) 550×1600	Model XY-3I(Φ) 610×1730	Model XY-3I(Φ) 710×1800	Model XY-3I(Φ) 710×2130	Model XY-3I(Φ) 800×2500	Model XY-3I(Φ) 860×2500	Model XY-3I(Φ) 900×2800
Roll Dia (mm)	230	252	300	360	400	450	500	550	610	710	710	800	860	900
Roll Working Length (mm)	630	720	900	1120	1200	1400	1500	1600	1730	1800	2130	2500	2500	2800
Roll Ratio	1:1:1	1:1:1	1:1:1	1:1:1, 0.73:1:0.73	1:1:1, 1.1:1.38:1	1.1:1, 1:1.5:1	1:1:1, 1:1.5:1	1:1:1, 1:1.5:1	1:1:1, 1:1.4:1	0.5~1 (Stepless adjustable)	1:1:1	0.5~1 (Stepless adjustable)	0.5~1 (Stepless adjustable)	0.5~1 (Stepless adjustable)
Middle Roll Linear Speed (m/min)	0.8-8	2-15.9	2-17	2-20	3-26.39	3-26.2	3-30	3-30	4-40	4-40	4-40	3-30	3-30	3-30
Adjusting Gap Range (mm)	0-6	0-6	0-6	0-10	0-10	0-10	0-10	0-10	0-10	0-30	0-15	0-30	0-30	0-30
Minimum Product Thickness (mm)	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.5	0.5
Calendering Product Width (mm)	500	580	700	920	1000	1200	1300	1300	1500	1600	1900	2200	2200	2500
Motor Power (KW)	7.5	22	30	45	55	75	90	110	160	90KW×2, 110KW×1	185	132KW×3	132KW×2, 160KW×1	160KW×3
Overall Dimensions - L (mm)	3168	3950	4200	5500	6300	6650	7350	7650	7010	9950	7650	11400	11700	12200
Overall Dimensions - W (mm)	1150	1220	1500	1500	1500	2200	2300	2400	3950	3050	4560	3200	3350	3600
Overall Dimensions - H (mm)	1650	1870	1950	2340	2440	2900	3060	3500	3730	4540	4080	5050	5290	5600
Gross Weight (t)	~3	~5.5	~9	~14	~18	~21	~28	~35	~42	~90	~67	~110	~130	~160