Xi'an Industrial Machinery Co., Ltd — machine tools since the 1990s
Engine Rebuilding Machine

Automatic Cylinder Honing Machine VHM170

The VHM170 is a CNC vertical cylinder honing machine built for shops that hone to a number rather than by feel. Spindle speed is stepless from 90 to 350 rpm and the stroke rate is stepless from 40 to 80 Hz, with stroke length adjustable from 0 to 240 mm, so cross-hatch and stone contact are set by the control rather th...

Overview

What This Machine Does

The VHM170 is a CNC vertical cylinder honing machine built for shops that hone to a number rather than by feel. Spindle speed is stepless from 90 to 350 rpm and the stroke rate is stepless from 40 to 80 Hz, with stroke length adjustable from 0 to 240 mm, so cross-hatch and stone contact are set by the control rather than by picking the nearest gear. Honing hole diameter runs from 62 to 178 mm to a maximum depth of 360 mm, and the machine takes a workpiece up to 1168 x 558 x 673 mm weighing 680 kg including the fixture, which covers most car and light commercial blocks. A 2.2 kW spindle motor and 0.75 kW stroke motor drive the head, with a 0.12 kW cooling pump and 210 dm3 of coolant. Floor area is 2318 x 1835 x 2197 mm, machine net weight 860 kg and 1100 kg with coolant, on a ground load of 800 kg/m2.

Key Benefits

Why Buyers Choose This Machine

  • Stepless spindle speed from 90 to 350 rpm sets surface speed exactly rather than to the nearest step
  • Stepless stroke rate from 40 to 80 Hz gives direct control of the cross-hatch produced
  • Stroke length adjustable from 0 to 240 mm to match the cylinder being honed
  • 62 to 178 mm honing diameter to 360 mm depth covers car and light commercial cylinders
  • Takes a workpiece up to 680 kg including the fixture, so a whole block is honed in place
  • 210 dm3 coolant capacity with its own pump keeps the honing area flooded through a long cycle
  • Automatic cycle control means the result does not change between operators
Application

Where Automatic Cylinder Honing Machine VHM170 Earns Its Place

Problems It Solves

  • Fixed spindle and stroke steps make the cross-hatch a compromise instead of a specification
  • Manual honing gives a different bore finish depending on who is on the machine
  • Lifting a cylinder out of a heavy block for honing costs time and loses the reference
  • Long honing cycles run dry when coolant capacity is too small
  • Bores finished outside specification cause ring bedding problems after the engine is built

Who It Is For

  • Production engine rebuild shops honing in volume
  • Machine shops that need a documented repeatable honing process
  • Workshops moving from manually set honing machines to CNC control
  • Distributors supplying engine reconditioning lines in export markets

Application Scenarios

  • Honing cylinder bores after reboring in a production engine rebuild shop
  • Cross-hatch finishing to a specified angle for a given piston ring pack
  • Honing full engine blocks weighing up to 680 kg with the fixture in place
  • Deep cylinder honing to 360 mm on light commercial engines
  • Batch honing where every bore must match the first one
Specification

Technical Detail

Technical Features

  • CNC vertical cylinder honing machine with automatic cycle
  • Range of honing hole diameter 62 to 178 mm
  • Maximum honing hole depth 360 mm
  • Spindle motor 2.2 kW with stepless adjustable speed 90 to 350 rpm
  • Stroke motor 0.75 kW with stepless adjustable stroke rate 40 to 80 Hz
  • Stroke length range 0 to 240 mm
  • Cooling pump motor 0.12 kW with 210 dm3 coolant capacity
  • Workpiece size up to 1168 x 558 x 673 mm and 680 kg including fixture
  • Machine net weight 860 kg, 1100 kg with coolant

Specifications

Machine typeCNC vertical automatic cylinder honing machine
ModelsVHM170
Range of honing hole diameter62 to 178 mm
Max honing hole depth360 mm
Workpiece size (L x W x H)1168 x 558 x 673 mm
Workpiece weight680 kg including the fixture
Spindle motor2.2 kW
Spindle speed90 to 350 rpm stepless adjustable
Stroke motor0.75 kW
Stroke rate40 to 80 Hz stepless adjustable
Stroke length range0 to 240 mm
Cooling pump motor0.12 kW
Coolant capacity210 dm3
Floor area (L x W x H)2318 x 1835 x 2197 mm
Machine tool net weight860 kg
Machine tool weight with coolant1100 kg
Gross weight with package without coolant1100 kg
Ground load800 kg/m2

Figures above are taken from the product information we hold. Send us your application and we will confirm the exact specification for the model quoted.

Manufacturing and Supply

How It Is Built and What Can Be Changed

Operations Performed

  • Honing
  • Cross-hatch finishing

Quality Control

  • Honed bore diameter and cross-hatch checked on a test cylinder before shipment
  • Spindle speed verified across the 90 to 350 rpm stepless range
  • Stroke rate verified across the 40 to 80 Hz range and stroke length over 0 to 240 mm
  • Coolant system tested to the 210 dm3 capacity
  • Machine run in through a full automatic honing cycle in our assembly workshop

Customisation Options

  • Fixturing specified for the blocks you hone, within the 680 kg workpiece weight including fixture
  • Honing heads and stones specified for your 62 to 178 mm bore range and cylinder material
  • Supply voltage and frequency set to your market
  • Control language and manual prepared for your shop
Comparison

How It Compares With the Alternatives

XAIMC 3MB9817 vertical cylinder honing machineThe 3MB9817 uses fixed spindle speed steps and manual table height; the VHM170 sets spindle speed stroke rate and stroke length steplessly under CNC control
XAIMC THM170 air-floating honing machineThe THM170 uses a hydraulic and pneumatic head positioned by the operator; the VHM170 runs an automatic honing cycle
Hand honing after boringHand honing cannot hold a specified cross-hatch angle or bore size across a batch; an automatic cycle repeats both
Use Guide

Running the Machine

Step 1

Confirm the block fits within 1168 x 558 x 673 mm and 680 kg including the fixture

Step 2

Fit the honing head and stones for the bore diameter within 62 to 178 mm

Step 3

Set stroke length within 0 to 240 mm to suit the cylinder

Step 4

Set spindle speed within 90 to 350 rpm and stroke rate within 40 to 80 Hz for the cross-hatch you want

Step 5

Check coolant level against the 210 dm3 capacity before starting

Step 6

Run the automatic cycle on the first bore and check size and cross-hatch

Step 7

Run the remaining bores on the same settings

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FAQ

Questions About Automatic Cylinder Honing Machine VHM170

What bore sizes and depths does it hone?

62 to 178 mm diameter to a maximum honing depth of 360 mm.

How large a workpiece will it take?

Up to 1168 x 558 x 673 mm and 680 kg including the fixture. Send us your block dimensions and weight and we will confirm.

Is the spindle speed adjustable?

Yes. Spindle speed is stepless from 90 to 350 rpm and stroke rate is stepless from 40 to 80 Hz, with stroke length from 0 to 240 mm.

What space and floor loading does the machine need?

Floor area is 2318 x 1835 x 2197 mm, machine net weight is 860 kg and 1100 kg with coolant, and ground load is 800 kg/m2.

How much coolant does it hold?

210 dm3, circulated by a 0.12 kW cooling pump motor.

What is the shipping weight?

Gross weight with packing and without coolant is 1100 kg. Tell us your destination port and we will quote FOB CFR or CIF.

What are your payment terms?

30 percent by T/T on order and 70 percent before shipment, or an irrevocable L/C at sight.

Request a Quote on the Automatic Cylinder Honing Machine VHM170

Send us the work you need it to do, the voltage on your site and the port you ship to. We will come back with the model, the tooling and the lead time.