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Your Trusted Industrial Partner

Professional manufacturer of precision metal products, couplings, hydrostatic spindles, and gears. Quality solutions for global industries since 2000.

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ISO 9001 Certified
Global Export
Custom Manufacturing

Our Product Categories

Precision engineered for demanding industrial applications

Metal Products

CNC machining, stamping, welding and fabrication
Couplings

Flexible, rigid, gear and jaw couplings
Hydrostatic Spindles

High-precision liquid hydrostatic spindles
Gears & Drives

Spur, helical, bevel, and worm gears

Why Choose Us

Decades of experience in precision industrial manufacturing

Premium Quality

ISO certified, strict QC with advanced measuring equipment

Fast Delivery

Efficient production planning, on-time delivery worldwide

Custom Design

OEM/ODM services, custom dimensions and materials

Trusted Partner

Long-term partnerships with 500+ clients across 40 countries

Featured Products

Premium industrial products for global markets

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MRWB-2000 Hydrostatic Rotary Table
MRWB-2000 Hydrostatic Rotary Table

MRWB-2000 hydrostatic rotary table: φ1980mm worktable, static stiffness >3000kgf...

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MRWB-1000 Hydrostatic Rotary Table
MRWB-1000 Hydrostatic Rotary Table

MRWB-1000 hydrostatic rotary table: φ1000mm worktable, static stiffness > 500kgf...

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MRWB-645 Hydrostatic Rotary Table
MRWB-645 Hydrostatic Rotary Table

MRWB-645 hydrostatic rotary table: φ645mm worktable, static stiffness > 400 kgf/...

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MRWB-600 Hydrostatic Rotary Table
MRWB-600 Hydrostatic Rotary Table

MRWB-600 hydrostatic rotary table: φ600mm worktable, static stiffness > 400kgf/μ...

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MRWB-500 Hydrostatic Rotary Table
MRWB-500 Hydrostatic Rotary Table

MRWB-500 hydrostatic rotary table: φ500mm worktable, static stiffness >300kgf/μm...

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MRWB-450 Hydrostatic Rotary Table
MRWB-450 Hydrostatic Rotary Table

MRWB-450 hydrostatic rotary table: φ450mm worktable, static stiffness 300kgf/μm,...

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MRWB-430 Hydrostatic Rotary Table
MRWB-430 Hydrostatic Rotary Table

MRWB-430 hydrostatic rotary table: φ430mm worktable, static stiffness > 200kgf/μ...

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MRWB-400 Hydrostatic Rotary Table
MRWB-400 Hydrostatic Rotary Table

MRWB-400 hydrostatic rotary table: φ400mm worktable, static stiffness > 200kgf/μ...

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Industry Insights

Latest articles and technical resources

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Nov 01, 2026
Hydrostatic Rotary Table vs Rolling Rotary Table: ...

A practical comparison of hydrostatic and rolling-bearing rotary tables covering rotation accuracy, load capacity, oil-f...

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Oct 31, 2026
Hard Turning vs Grinding: Which Parts Suit Turning...

Hard turning replaces final grinding with a PCBN precision turning pass. See which parts suit it (slender shafts, thin-w...

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Oct 30, 2026
Drum Gear Coupling Angular Misalignment: Allowable...

Drum gear couplings absorb angular, radial and axial shaft offset, but every model has a maximum allowable angular misal...

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Oct 29, 2026
Hydrostatic Spindle Oil Film Stiffness: Why a Few ...

A hydrostatic spindle's rigidity is set by its oil film, not its motor. Quantified data shows a +10 um radius-clearance ...

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Oct 28, 2026
Hobbing vs Grinding for Gear Finishing: Cycle Time...

A practical comparison of gear hobbing and gear grinding for finishing toothed parts. Cycle time, cost, achievable accur...

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Oct 27, 2026
Hydrostatic Spindle Retrofit: Upgrade Standard & C...

A hydrostatic spindle retrofit keeps the machine bed and CNC but replaces the rolling-bearing spindle, lifting runout to...

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Phone
+86-132-2548-3327
Contact
+86-132-2548-3327
Email
dennis.chi@163.com
Location
Shandong, China

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Frequently Asked Questions

What products does Marusaku Seiko manufacture?
Precision hydrostatic rotary tables, hydrostatic spindles, gear hobbing and shaping machines, drum gear couplings, torque motors and linear motors for industrial automation and machine-tool applications.
Do you provide OEM or custom manufacturing?
Yes. We offer OEM/ODM and custom manufacturing based on customer drawings and specifications, including hydrostatic and direct-drive motor solutions.
What accuracy can your hydrostatic rotary tables achieve?
Our hydrostatic rotary tables use oil-film hydrostatic bearings to deliver ultra-smooth, high-rigidity rotation, with rotary positioning accuracy within ±0.001 mm.
How long has Marusaku Seiko been in manufacturing?
We have more than 30 years of experience in precision mechanical manufacturing.
Which industries do your products serve?
Machine-tool builders, automation lines, robotics, aerospace, and precision equipment manufacturers worldwide.