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SX150-9W Reciprocating Hydraulic Planar Grinder
For factories processing extra-wide batches of large circular metal workpieces, limited horizontal travel on standard grinders creates major workflow bottlenecks. Operators are forced to repeatedly re-clamp, re-align and re-calibrate parts mid-batch, which drags down cycle efficiency and introduces avoidable thickness/flatness discrepancies between finished components.
The SX150-9W hydraulic grinder machine was engineered specifically to resolve this pain point via its industry-leading 900mm reciprocating stroke - a core differentiator that sets it apart from shorter-travel grinding models. Its closed-loop hydraulic feed system delivers smooth, shock-free horizontal movement without the jerky positioning common on mechanical-only grinders, even when loaded with full stacks of thick heavy blanks.
Unlike compact precision-focused grinders built for small high-tolerance prototypes, this model prioritizes large-lot throughput while maintaining reliable planar accuracy. It consolidates multiple clamping setups into one continuous grinding pass, slashing labor time spent on fixture adjustments and reducing human error that impacts finished part uniformity.
Real-World Machining Tolerance Performance
All accuracy metrics below are recorded under sustained full-load hydraulic operation; final results will shift slightly based on workpiece hardness and thickness:
- Parallelism deviation: 0.015 mm
- Flatness tolerance: 0.015 mm
- Thickness variance across batches: 0.02 mm
- Surface finish grade: Ra 0.8 μm
This tolerance window is perfectly matched for mass-manufactured load-bearing components including large bearing races, mining machinery flanges and heavy vehicle brake discs. Consistent planar surfaces distribute mechanical load evenly after assembly, extending the service life of end equipment and lowering field failure rates for OEM manufacturers.
Distinct Hardware Design and Functional Advantages
Long-Travel Reciprocating System and Rigid Spindle Assembly
The standout feature of this hydraulic grinder lies in its 900mm horizontal reciprocating stroke - nearly double the travel length of comparable mid-size grinding machines. This extended path allows full batches of large-diameter circular blanks to be processed in a single continuous run, eliminating repeated repositioning and alignment work.
Supporting this large-format processing capacity is a heavy Φ150mm solid spindle shaft, engineered to resist deflection under the weight of thick, dense metal workpieces. Complementing the horizontal travel, the 130mm vertical grinding head stroke accommodates diverse fixture heights and variable blank thickness ranges.
A 0.001mm minimum feed adjustment gives operators precise control over stock removal depth during semi-finishing cycles, so rough grinding and light finishing can be completed on one single machine without part transfer between separate workstations.
Load-Balanced Multi-Motor Power Configuration
Power delivery is split across three independent drive units to balance torque demand and isolate vibration transfer to the hydraulic reciprocating system, with a total combined power rating of 96kW:
- Twin 30kW spindle motors: Output high sustained rotational torque to rapidly remove excess material from thick blanks, with no risk of stall under maximum cutting loads
- Dual 1.8kW feed motors: Coordinate with the hydraulic reciprocating circuit to maintain uniform horizontal travel speed throughout every grinding cycle
- Single 0.9kW wheel trimming motor: Automates consistent abrasive wheel dressing, preserving wheel sharpness and stabilizing long-run dimensional accuracy
Separated power loads prevent single motor overheating during round-the-clock shifts, reducing wear on hydraulic valve components and cutting unplanned maintenance downtime.
Oversized Vibration-Dampening Machine Frame
The machine's overall outer footprint measures 7800 × 4600 × 2400 mm (L × W × H). This extra-long, wide cast base is reinforced to counteract vibration generated by the long-stroke hydraulic reciprocating motion - a unique structural requirement not needed on shorter-travel grinders. The heavy, balanced frame eliminates vibration drift that would degrade flatness accuracy during multi-hour continuous runs, and it removes the need for costly reinforced concrete foundations on most standard factory floors.
Target Manufacturing Sectors
This long-stroke hydraulic grinding unit is deployed in large-scale bearing foundries, mining equipment component plants, heavy commercial vehicle workshops and general heavy metal fabrication facilities. It is purpose-built for high-volume planar processing of oversized, thick circular metal blanks, raising production throughput and improving finished component qualification rates.
FAQ
Q1: What production gains come with the 900mm extended reciprocating stroke?
A: The extra-long horizontal travel eliminates frequent re-clamping and realignment of large workpieces. Operators can process full batches in one continuous pass, drastically cutting total cycle time per production run and minimizing human-induced dimensional errors.
Q2: How does the hydraulic feed system differ from standard mechanical grinders?
A: The integrated hydraulic circuit delivers smooth, jerk-free reciprocating motion when handling heavy stacked workpieces. It maintains consistent travel speed across the full stroke length for more uniform grinding results, unlike mechanical drives prone to speed fluctuations under heavy load.
Q3: Is this hydraulic grinder suitable for round-the-clock mass production lines?
A: Yes. Its load-balanced multi-motor setup and vibration-suppressing oversized cast frame sustain stable accuracy through nonstop shifts. The hydraulic reciprocating system is built for repetitive long-stroke cycles, making it ideal for high-volume heavy component manufacturing workflows.
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