The most prominent feature is its horizontal layout. The broaching tool and the workpiece are arranged horizontally. This design allows for a stable machining process as the force exerted during broaching is distributed in a more balanced way along the horizontal axis. For example, when broaching a keyway on a long shaft, the horizontal position helps to ensure that the shaft remains in a stable position and the broaching tool can move smoothly through the workpiece.

Horizontal broaching machines are known for their high – precision capabilities. The broaching process is a continuous cutting operation that can achieve very accurate dimensions. The tool’s teeth are precisely shaped and spaced to remove material in a controlled manner. It can achieve tight tolerances, usually in the range of a few micrometers. This makes it suitable for manufacturing components such as gears and splines, where dimensional accuracy is crucial. The accuracy of the machine is maintained through a rigid construction and precise guiding systems that keep the broaching tool on the correct path.

They have a high material – removal rate. The broaching tool has multiple cutting teeth, and as it moves relative to the workpiece, each tooth successively removes a layer of material. This multi – tooth cutting action allows for a large amount of material to be removed in a single pass. Compared to other machining methods like milling or turning, broaching can often complete the machining of a complex shape much more quickly. For instance, in the production of internal splines in a hub, a broaching machine can quickly shape the splines to the desired form with a high rate of material removal.

The machine uses specialized broaching tools. These tools are designed according to the specific shape of the workpiece to be machined. For example, if the workpiece requires a complex internal profile such as a non – circular hole or a profiled groove, the broaching tool will have a corresponding shape. The tools are usually long and slender to fit into the workpiece and perform the broaching operation. They are made of high – quality tool steels and are often coated to improve wear resistance and cutting performance.

A horizontal broaching machine has a very rigid structure. The bed of the machine is usually made of high – quality cast iron to provide a stable base. The columns and guideways that support the broaching tool and the workpiece – holding fixtures are also designed to be rigid to withstand the cutting forces. This rigidity is essential to prevent vibrations during the machining process. Vibrations can lead to poor surface finish and inaccurate machining dimensions. The rigid structure ensures that the broaching tool and workpiece maintain their relative positions accurately during the cutting process.

Horizontal broaching machines are well – suited for mass production. Once the broaching tool is set up and the machine is calibrated for a particular workpiece, it can produce a large number of identical components with high precision and efficiency. The quick material – removal process and the ability to maintain consistent quality make it a preferred choice for industries such as automotive and aerospace, where a large number of parts with the same specifications need to be manufactured. For example, in the production of engine components like valve guides, a horizontal broaching machine can produce thousands of parts with the same dimensions and surface quality.

S/N	Main technical parameters	Unit	L6120	L6140	L6160
1	Rated broaching force	kN	200	400	600
2	Rated stroke of slide	mm	1600	2000	2000
3	Working stroke speed (stepless)	m/min	1～10	1.5～7	2～7.5
4	Backstroke speed (stepless)	m/min	2～20	3～18	3～18
5	Size of end plate surface	mm	640×620	640×640	640×550
6	Hole diameter of end plate	mm	Φ200H7	Φ250H7	Φ250H7
7	Faceplate hole diameter	mm	Φ130H7	Φ150H7	Φ150H7
8	Height from positioning surface to floor (operating height)	mm	850	850	850
9	Axial plunger pump for main drive		A145-F-R-04	A3H180-FR14K	A3H320-FR14K
	Displacement	mL/r	145	180	320
	Max. operating pressure	MPa	16	16	16
	Rated operating pressure	MPa	12	11	11
10	Main drive motor		YE3-200L-4	Y200L-4-B35	Y225M-4-B55
	Power	kW	33	45	55
	Rotate speed	rpm	1470	1470	1470
11	Auxiliary pump – variable vane pump		SVPF-40-70	SVPF-40-70	SVPF-40-70
	Displacement	mL/r	22.2	22.2	22.2
	Max. operating pressure	MPa	6	6	6
	Rated operating pressure	MPa	4	4	4
12	Electric motor for auxiliary pump
	Power	kW	2.2	2.2	2.2
	Rotate speed	rpm	1470	1470	1470
13	Cooling pump		DB-100	DB-100	DB-100型
	Flow	L/min	100	100	100
14	Motor power of cooling pump	kW	0.25	0.25	0.25
	Motor speed of cooling pump	rpm	3000	3000	3000
15	Total motor capacity	kW	33	33	48
16	Working space of machine tool (L×W×H)	mm	7250×2400×1300	8640×2500×1480	8700×2800×1480
17	Machine weight	kg	8000	12000	16000

S/N	Item		Brand		Remarks
I. Mechanical Part
1	Machine body	Standard	Own made	√
2	Main slide	Standard	Own made	√
3	Big faceplate	Standard	Own made	√
4	Main oil cylinder (effective stroke L = 2000mm)	Standard	Own made	√
5	Broach holder	Standard	Own made	√
6	Tailstock	Standard	Own made	√
II. Hydraulic Part
7	Mainly hydraulic system (hydraulic schematic diagram)	Standard	Own made	√
8	Variable displacement axial piston pump	Standard	YUKEN, Japan	√
9	Hydraulic station (oil tank assembly drawing)	Standard	Own made	√
III. Electrical Part
10	PLC	Standard	Siemens	√
11	Contactor, relay	Standard	Siemens	√
12	Electrical control cabinet	Standard	Own made	√
13	Proximity Switch	Standard	Switzerland Contrinex	√
IV. Other Parts
14	Cooling pump (DB-100A)	Standard		√
15	Automatic chip removal (magnetic or scraper type)	Standard	Shandong Yufeng	√
V. Special Accessories
16	Main and auxiliary broach (handle diameter D= mm)	One set of standard configuration	Own made	√
17	Broach	Optional
18	Adjusting pad iron (1 set)	Standard	Own made	√
19	One set of vulnerable sealing part	Standard		√

Horizontal Broaching Machine L61 Series

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