All-steel ball-type heavy-duty MSA-A MSA-LA

Main Applications Machining centers, NC lathes, XYZ axes for heavy-duty machining equipment, worktable feed axes for grinding machines, milling machines, vertical or horizontal boring mills, tool guiding components, Z-axes for machine tools, automatic coating machines, industrial robots, various high-speed material feeding devices, Z-axes for general industrial machinery, PCB drilling machines, electrical discharge machining (EDM) machines, measuring instruments, and precision XY stages.

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Product Description

Commodity name: All-steel ball-type heavy-duty MSA-A MSA-LA
Commodity ID: PCPMI-0002

Feature

● Heavy-duty, high rigidity

● Equipped with self-aligning capability

● Smooth and effortless walking

● Low noise

● Has interchangeable characteristics

Main uses

Machining centers, NC lathes, XYZ axes for heavy-duty machining equipment, worktable feed axes for grinding machines, milling machines, vertical or horizontal boring mills, tool guiding units, Z-axes for machine tools, automatic coating machines, industrial robots, various high-speed material feeding devices, Z-axes for general industrial machinery, PCB drilling machines, electrical discharge machining (EDM) machines, measuring instruments, precision XY stages.

Model	Slide rail dimensions					Basic rated load		Allow static torque					Weight
	Width W₁	Height H₁	Pitch P	Estd.	D × h × d	Dynamic load C KN	Static load C. KN	MP kN-m		My kN-m		Mr. KN-m	Slider kilogram	Slide rail kg/m
	Width W₁	Height H₁	Pitch P	Estd.	D × h × d	Dynamic load C KN	Static load C. KN	Single	Double	Single*	Double *	Mr. KN-m	Slider kilogram	Slide rail kg/m
MSA 15 A	15	15	60	20	7.5 × 5.3 × 4.5	11.8	18.9	0.12	0.68	0.12	0.68	0.14	0.18	1.5
MSA 20A MSA 20 LA	20	18	60	20	9.5×8.5×6	19.2 23.3	29.5 39.3	0.23 0.39	1.42 2.23	0.23 0.39	1.42 2.23	0.29 0.38	0.4 0.52	2.4
MSA 25A MSA 25 LA	23	22	60	20	11×9×7	28.1 34.4	42.4 56.6	0.39 0.67	2.20 3.52	0.39 0.67	2.20 3.52	0.48 0.63	0.62 0.82	3.4
MSA 30A MSA 30 LA	28	26	80	20	14×12×9	39.2 47.9	57.8 77.0	0.62 1.07	3.67 5.81	0.62 1.07	3.67 5.81	0.79 1.05	1.09 1.43	4.8
MSA 35A MSA 35 LA	34	29	80	20	14×12×9	52.0 63.6	75.5 100.6	0.93 1.60	5.47 8.67	0.93 1.60	5.47 8.67	1.25 1.67	1.61 2.11	6.6
MSA 45A MSA 45LA	45	38	105	22.5	20×17×14	83.8 102.4	117.9 157.3	1.81 3.13	10.67 16.95	1.81 3.13	10.67 16.95	2.57 3.43	2.98 3.9	11.5

Model	External dimensions					Slider size
Model	Height H	Width W	Length L	W₂	H₂	B	C	Sxl	L	T	T₁	N	G	K	d	Oil nozzle specifications
MSA 15 A	24	47	56.3	16	4.2	38	30	M5×11	39.3	7	11	4.3	7	3.2	3.3	G-M4
MSA 20 A MSA 20 LA	30	63	72.9 88.8	21.5	5	53	40	M6×10	51.3 67.2	7	10	5	12	5.8	3.3	G-M6
MSA 25 A MSA 25 LA	36	70	81.6 100.6	23.5	6.5	57	45	M8×16	59 78	11	16	6	12	5.8	3.3	G-M6
MSA 30 A MSA 30 LA	42	90	97 119.2	31	8	72	52	M10×18	71.4 93.6	11	18	7	12	6.8	3.3	G-M6
MSA 35 A MSA 35 LA	48	100	111.2 136.6	33	9.5	82	62	M10×21	81 106.4	13	21	8	11.5	8.6	3.3	G-M6
MSA 45 A MSA 45 LA	60	120	137.7 169.5	37.5	10	100	80	M12×25	102.5 134.3	13	25	10	13.5	10.6	3.3	G-PT1/8

Interchangeable, Interchangeable Slider Model

Accuracy class

Slide rail length (mm)		Walking Parallelism Value (μm)
More than	The following (inclusive)	N	H	P	SP	UP
0	315	9	6	3	2	1.5
315	400	11	8	4	2	1.5
400	500	13	9	5	2	1.5
500	630	16	11	6	2.5	1.5
630	800	18	12	7	3	2
800	1000	20	14	8	4	2
1000	1250	22	16	10	5	2.5
1250	1600	25	18	11	6	3
1600	2000	28	20	13	7	3.5
2000	2500	30	22	15	8	4
2500	3000	32	24	16	9	4.5
3000	3500	33	25	17	11	5
3500	4000	34	26	18	12	6

Assembly Precision Table (Non-Interchangeable Type)

Model	Project	Accuracy class
Model	Project	General Grade N	Advanced H	Precision Grade P	Ultra-precision grade SP	Ultra-high precision class UP
15 20	Tolerance for dimension H of height	±0.1	±0.03	0–0.03	0–0.015	0–0.008
	Pairwise difference in height (△H) with height H	0.02	0.01	0.006	0.004	0.003
	Tolerance for dimension W₂'s width	±0.1	±0.03	0–0.03	0–0.015	0–0.008
	Pairwise Difference (ΔW₂) of Width W₂	0.02	0.01	0.006	0.004	0.003
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
25 30 35	Tolerance for dimension H of height	±0.1	±0.04	0-0.04	0-0.02	0-0.01
	Pairwise difference in height (△H) with height H	0.02	0.015	0.007	0.005	0.003
	Tolerance for dimension W₂'s width	±0.1	±0.04	0-0.04	0-0.02	0-0.01
	Pairwise difference (AW₂) of width W₂	0.03	0.015	0.007	0.005	0.003
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
45 55	Tolerance for dimension H of height	±0.1	±0.05	0-0.05	0–0.03	0-0.02
	Pairwise difference in height (△H) with height H	0.03	0.015	0.007	0.005	0.003
	Tolerance for dimension W₂'s width	±0.1	±0.05	0-0.05	0–0.03	0-0.02
	Pairwise difference (AW₂) of width W₂	0.03	0.02	0.01	0.007	0.005
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
65	Tolerance for dimension H of height	±0.1	±0.07	0–0.07	0-0.05	0–0.03
	Pairwise difference in height (△H) with height H	0.03	0.02	0.01	0.007	0.005
	Tolerance for dimension W₂'s width	±0.1	±0.07	0–0.07	0-0.05	0–0.03
	Pairwise difference in width W₂ (△W₂)	0.03	0.025	0.015	0.01	0.007
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)

Single-part precision table (interchangeable type)

Model	Project	Accuracy class
Model	Project	General Grade N	Advanced H	Precision Grade P
15 20	Tolerance for dimension H of height	±0.1	±0.03	0–0.03
	Pairwise difference in height (△H) with height H	0.02	0.01	0.006
	Tolerance for dimension W₂'s width	±0.1	±0.03	0–0.03
	Pairwise difference (△W₂) of width W₂	0.02	0.01	0.006
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
25 30 35	Tolerance for dimension H of height	±0.1	±0.04	0-0.04
	Pairwise difference in height (△H) with height H	0.02	0.015	0.007
	Tolerance for dimension W₂'s width	±0.1	±0.04	0-0.04
	Pairwise difference (△W₂) of width W₂	0.03	0.015	0.007
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
45 55	Tolerance for dimension H of height	±0.1	±0.05	0-0.05
	Pairwise difference in height (△H) with height H	0.03	0.015	0.007
	Tolerance for dimension W₂'s width	±0.1	±0.05	0-0.05
	Pairwise Difference (AW₂) of Width W₂	0.03	0.02	0.01
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)
65	Tolerance for dimension H of height	±0.1	±0.07	0–0.07
	Pairwise difference in height (△H) with height H	0.03	0.02	0.01
	Tolerance for dimension W₂'s width	±0.1	±0.07	0–0.07
	Pairwise Difference (AW₂) of Width W₂	0.03	0.025	0.015
	The parallelism of the slider's C surface relative to the rail's A surface.	△C (as shown in Table 1)
	The parallelism of the slider's D surface relative to the rail's B surface.	△D (as shown in Table 1)

Note: Single-track interchange definition: Interchange of sliders on a single slide rail; does not cover interchange involving multiple rails and multiple sliders.

Preload level

Series Category	Preload level
	Light Preload (FC)	Pre-compression (FO)	Preload (F1)
MSA15	0~0.02C	0.03~0.05C	0.05~0.08°C
MSA20
MSA25
MSA30
MSA35
MSA45
MSA55
MSA65
MSA20L	0~0.02C	0.03~0.05C	0.05~0.08°C
MSA25L
MSA30L
MSA35L
MSA45L
MSA55L
MSA65L

Heavy-Duty MSA Series

Product Features

The MSA series linear guides feature a four-row ball bearing design with arc-shaped contact surfaces and a 45° contact angle, providing the same rated load capacity in all four directions—radial, reverse-radial, and lateral. They can be used in various installation configurations along the X, Y, and Z axes, and allow for uniform preloading while maintaining low friction resistance, thereby enhancing rigidity in all four load-bearing directions. This makes them particularly well-suited for applications requiring high precision and heavy loads.

The patented lubrication oil circuit design ensures uniform injection of lubricating grease into each circulation loop, delivering optimal lubrication performance regardless of the installation method. This enhances overall smoothness of movement and extends service life, thereby meeting the demands for high precision, high reliability, and smooth, stable linear motion.

High rigidity, four-way equal-load design

The slider’s highly rigid cross-sectional design, combined with a 4-row ball configuration and a 45° arc contact angle, not only provides the same rated load capacity in all four directions—radial, reverse-radial, and lateral—but also allows for sufficient preload to enhance its rigidity, making it suitable for a wide range of installation methods.

Smooth walking performance, low noise

The ball return path features a simple, smooth design, and the ball circulation components are made of impact-resistant, reinforced synthetic resin, ensuring smooth operation and low noise levels.

With automatic self-aligning capability

The arc-shaped groove design of the positive combination (DF combination) gives it self-aligning capability, enabling it to absorb installation errors even under preload and maintain smooth, stable, and highly precise linear motion.

Has the property of interchangeability

Under strict manufacturing precision control, dimensions can be maintained within stable tolerances. Therefore, for interchangeable linear guide rails, the sliders can be freely matched to slides of the same model during assembly, while still maintaining identical smoothness, preload, and accuracy. This makes assembly and maintenance exceptionally easy.

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Automation Industry-Specific

Micro-series FSMW

FSKW End-Cap Type Series

Internal Circulation Series FSDW

FSKW End-Cap Type Series

Internal Circulation Series FSIW

FSKW End-Cap Type Series

End-cap type series FSKW

FSKW End-Cap Type Series

External Circulation Series SSVW

FSWW External Circulation Series

External Circulation Series FSBW

FSWW External Circulation Series

External Circulation Series RSVW

FSWW External Circulation Series

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Contact: Zheng Shunfang18998086927(WeChat, same number)
Company phone:86 0769-83907790
Email:3413945297@qq.com
Address: Room 101, Building 7, No. 8 Liyuan Industrial Road 2, Luyu Village, Changping Town, Dongguan City

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