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External Cylindrical Grinder

-- Steady & Reliable Manufacturer --

Intro

The external cylindrical grinder is a dedicated outside-diameter grinding machine, built without an internal grinding spindle so the whole structure stays simpler and more rigid for straight, taper and shoulder work on shafts and rollers. It is available in both handwheel-operated and CNC-controlled versions.

Core Capability

A single-purpose wheelhead is optimized purely for external stock removal and finishing, so buyers who never need bore grinding get a more focused, better-value machine than a combined internal/external model. Diameter and length coverage matches our general cylindrical grinder range, just without the internal attachment.

Premium Materials and Components

Materials and components are the most critical elements to affect the performance of the equipment.

We use high-quality raw materials and branded components to ensure that our high-performance machines have a long service life and short downtime.

  • External grinding wheel chuck
  • Flat grinding wheel chuck
  • Φ 400 or Φ 600 balance frame
  • M7130-5006 front bearing
  • Rapid advance and retreat cylinder
  • Pressure valve plate assembly
  • Feed box assembly
  • Overflow valve
  • Table control box
  • Grinding head box
  • Control panel assembly
Design for High Performance

The performance of a machine is the result of the combined effect of all its components.

Our technical team consists of experienced engineers and technicians who are not only proficient in the operation and maintenance of grinders, but also have a deep understanding of material properties and processing technology. This enables us to provide customers with customized solutions to meet their specific processing needs.

By deeply studying the design and manufacturing process of precision grinding machines and paying great attention to configuration and construction from the beginning, our R&D team is able to provide high-performance equipment.

Specification

ItemValue
ModelMB1332 (manual) / MK1332-C (CNC)
Max. swing over tableØ320–400mm
Max. grinding length1000–3000mm
Grinding wheel sizeØ400–500 x 50 x Ø203/305mm
Wheel spindle speed1440–1800rpm
Roundness accuracy≤0.003–0.005mm
Surface finishRa0.2µm
ControlHandwheel dial or Fanuc/Siemens/GSK CNC
Main motor power5.5–7.5kW
Machine weight3–7 tons
Overall dimensions (L x W x H)3000–5500 x 1800 x 1600mm

Choose the manual or CNC control version based on part variety and batch size; both share the same rigid OD-only wheelhead design.

Workpiece Range

Handles straight, taper and shoulder/step diameter grinding on shafts, rollers and pins from Ø5–500mm and up to 3000mm long, in hardened steel, stainless steel and cast iron. Because there is no internal spindle to accommodate, the wheelhead and tailstock layout can stay compact for a given swing diameter.

Tolerance & Output

Manual versions typically hold IT6–IT7 with roundness around 0.005mm; CNC versions tighten this to IT5–IT6 with roundness ≤0.002–0.003mm and better run-to-run repeatability, which matters most for buyers running the same shaft or roller family in volume.

Core Functions

  • Plunge and traverse grinding modes for straight and stepped diameters
  • Swiveling headstock/footstock (manual) or programmed taper path (CNC) for angled sections
  • Manual diamond dresser bar or automatic dressing cycle depending on control tier
  • Hydraulic or servo table traverse matched to the control option selected
  • Optional digital readout (DRO) upgrade on manual models
  • Optional in-process gauge on CNC models for closed-loop diameter control

Quality Control

  • OD roundness and taper accuracy verified on every machine before shipment
  • Grinding wheel balance check to prevent chatter during operation
  • Trial grind on a sample workpiece to confirm stated tolerance
  • CMM audit on CNC-tier machines prior to packing
  • ISO9001-certified process with model-specific warranty terms

FAQ

  • Q: Why choose a dedicated external grinder instead of a combined internal/external machine?
  • A: If your parts never need bore grinding, a dedicated OD-only machine gives a simpler, more rigid structure and better value than paying for an internal spindle attachment you won't use.
  • Q: What tolerance can I expect from the manual versus CNC version?
  • A: Manual versions typically hold IT6–IT7 with roundness around 0.005mm; the CNC version tightens this to IT5–IT6 with roundness ≤0.002–0.003mm and more consistent batch-to-batch results.
  • Q: Can taper and shoulder grinding be done on this machine?
  • A: Yes, taper work is done via a swiveling headstock/footstock on the manual version or a programmed taper path on the CNC version, and shoulder/step grinding is standard on both.
  • Q: Can an internal grinding attachment be added later if needed?
  • A: This model line is built specifically without an internal spindle mount, so if bore grinding may be needed later, our combined cylindrical grinder line would be the better starting choice.
  • Q: What is the typical lead time?
  • A: Manual versions usually ship in 40–55 days; CNC versions typically take 60–75 days depending on control and gauge options selected.

Equipment Configuration

  • Rigid cast-iron bed with hardened, precision-ground slideways
  • Dedicated single wheelhead with no internal grinding spindle mount
  • Hydraulic table drive on manual models, servo axes on CNC models
  • Control options from handwheel dial up to Fanuc, Siemens or GSK CNC
  • Coolant filtration and wheel dresser matched to the tier ordered

Where It Is Used

  • Shaft and roller manufacturers needing OD-only grinding
  • Pump and motor shaft producers
  • Hydraulic cylinder rod manufacturers
  • Agricultural and general machinery shaft producers
  • Machine shops that never need internal bore grinding on the same machine

Automation Options

  • Custom bed length and swing diameter for non-standard shaft sizes
  • Control brand selection to match a buyer's existing machine fleet
  • Robot or gantry loading integration on the CNC control tier
  • Custom steady rest configuration for long, slender shafts
  • Wheel grit and bond specification matched to the workpiece material
  • 35000 m²+
    Total Factory Area
  • 2003
    Was Founded In
  • 210+
    Precision Equipment
  • 45+
    Exporting Countries & Regions
Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd. is a professional manufacturer of precision grinding machines. It is located in Zhuji, Zhejiang Province, the main economic development area of the Yangtze River Delta. It is 65km away from Hangzhou, 180km away from Shanghai, 60km away from Hangzhou International Airport, and 60km away from expressways such as Hangjinqu, Zhuyong, and Shaozhu, with convenient transportation and unique geographical location.

The company covers an area of 35000 square meters and a building area of 32000 square meters. Zhejiang Quanshun Machine Tool Co., Ltd. is a professional wholesale External Cylindrical Grinder Manufacturers and External Cylindrical Grinder Factory. It has a machine tool production base and a hydraulic parts production base. The main products are various specifications of ordinary (CNC) cylindrical grinding machines, CNC end face cylindrical grinding machines, automatic loading and unloading CNC (end face) cylindrical grinding machines, composite grinding machines，high-precision ordinary (CNC) cylindrical grinding machines, and we can design and develop various kinds of non-standard special grinding machines according to the needs of users and provide relevant technology, software, training services and automation solutions. Our company has complete product research and development capabilities, passed IS09001-2015 quality system and CE safety certifications, and was named "National High-tech Enterprise".In 2021, it was rated as a specialized and new small and medium-sized enterprise in Zhejiang Province. We also have self-export qualifications. Our company adheres to the concept of "quality first, reputation first, service first", so that our products have a good reputation in the market. At present, our products have been exported to more than 20 countries, such as the United States, Germany, Japan, and Southeast Asia.

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Certificate

Believe In Our Strength

Zhejiang Quanshun Machine Tool Co., Ltd. has more than 20 years of industry experience, we specialize in the manufacture of high-quality precision grinding machines.
  • Advanced manufacturing procedures.
  • Full quality management system.
  • Thoughtful after-sales service.

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