High Precision Cylindrical Grinder External Grinding Machine G Series

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: G-630
• Processing Object: Splined Shaft
• Abrasives: Grinding Wheel
• Controlling Mode: Artificial
• Automatic Grade: Automatic
• Cylindrical Grinder Type: Universal Cylindrical Grinder
• Precision: High Precision
• Certification: CE, ISO 9001
• Condition: New
• Dia. Ground (O.D): 30-630 mm
• Grinding Length (O.D): 2000/3000/4000/5000 mm
• Loading Capacity: 3000 Kg
• Gross Weight: 18/22/23/26 Tons
• Packing Size (Lxwxh): 720/876/1100/1270X240X226 Cm
• Transport Package: Wooden Box
• Specification: Diameter: 30-630 mm
• Trademark: TIMEWAY
• Origin: China(Mainland)
• Production Capacity: 100 Sets

Product Description

Cylindrical Grinder G-630,UG-630,G-800

* G-630/G-800 cylindrical grinder is suitable for grinding outer cylindrical and conical surface; UG-630 universal cylindrical grinder
is suitable for grinding outer and inner cylindrical and conical surface.
The longitudinal movement of the worktable is driven by hydraulic or by handwheel. The worktable can rotate to a certain degree so
as to be suitable for grinding taper.
* The wheelhead cross feed is driven by hydraulic, which realizes automatic periodical feed and rapid feed. It can also do rough and
fine feed through handwheel.
* The worktable and wheelhead guideway adopt hydrostatic lubrication, its movement on low speed is smooth.
* The spindle is supported by hydrostatic and hydrodynamic bearings of high rigidity, it makes the spindle have high rotary accuracy
and perfect rigidity.
* The workhead adopts inverter motor to realize stepless speed adjustment.

 

Technical Parameter

Specification	Unit	G-630	UG-630	G-800
Distance between centers	mm	2000/3000/4000/5000	2000/3000/4000/5000	3000/4000/5000
Center height	mm	370	370	500
Dia. ground (O.D)	mm	30-630	30-630	50-800
Dia. ground (I.D)	mm	-	30-250	-
Grinding length (O.D)	mm	2000/3000/4000/5000	2000/3000/4000/5000	3000/4000/5000
Grinding length (I.D)	mm	-	320	-
Loading capacity	kg	3000	3000	3000
Workhead swivel angle	°	-	?	-
Workhead spindle taper	-	Metric 80	90°	Metric 80
Workhead spindle speed	rpm	6-60 (stepless)	Metric 80	5-50 (stepless)
Wheelhead feed of handwheel per rev. (rough/fine)	mm/rev	4/0.5	14-140 (stepless)	4/0.5
Wheelhead feed of handwheel per gra. (rough/fine)	mm/gra	0.02/0.0025	4/0.5	0.02/0.0025
External grinding wheel size	mm	750x75x305	0.02/0.0025	900x75x305
Max. peripheral speed of grinding wheel	m/s	35	600x75x305	35
Internal grinding spindle speed	rpm	-	35/17.5	-
Internal grinding wheel size	mm	-	10000	-
Table feed of handwheel per rev.	mm	5	175x32x32	5
Table swivel angle (CW)	°	2°/1° /1°/1°	5	1° /1°/1°
Table swivel angle (CCW)	°	4°/3° /2° /1.5°	2°/1°/1°/1°	3° / 2° /1.5°
Table longitudinal feed speed	m/min	0.1-2.5	4° /3° /2.5°/1.5°	0.1-2.5
Tailstock quill taper	-	Metric 80	0.1-2.5	Metric 80
Tailstock quill travel	mm	70	Metric 80	70
External grinding motor power	kw	22	70	22
Internal grinding motor power	kw	-	7/11	-
Workhead motor power	kw	15	1.5	15
Roundness	um	3	15	3
Cylindricity	um	8/8/12/12	3	2008/12/12
Roughness	um	Ra0.32	8/8/12/12	Ra0.32
Gross weight	tons	18/22/23/26	Ra0.32	22/23/26
Packing size (LxWxH)	cm	720/876/1100/1270x240x226	18/22/23/26	876/1100/1270x240x230

 
Standard accessories:
Measuring bridge plate, Open steady rest, Wheel flange, Wheel extractor, Balancing arbor, Grinding wheel, Coolant tank,
Carbide tripped center,Driving dog, Wheel dresser (Without diamond pen), Work lamp, Internal grinding attachment (UG),
3-jaw chuck (UG), Extension shaft (UG), Internal grinding wheel (UG), Full set tools, Leveling wedge,
Operation manual (English edition).
Optional accessories:
Balancing stand, Digital readout, Close steady rest, End wheel dresser, Radius wheel dresser,
Center grinding attachment (G), Magnetic separator, Paper filter.
 

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Our Advantages

1. Free replacing parts available in the warranty period. Cost price replacing parts available beyond the warranty period.
2. Quick action and reply for the technical questions at any time in the whole life of the machine.
3. Overseas after service center available in some region.
4. Engineer overseas service available on the requirement of customer(relative cost born by customer).

Packaging & Shipping

Company Profile

Timeway Machine Tool Co., Ltd. is a professional machine tool manufacturing enterprises, the main products include lathe, milling machine, grinding machine, etc., and according to customer needs we also can design and manufacture various special purpose machines, to provide relative technology upgrading and transformation services in machine tool field.

Since the establishment of the Ministry of Foreign Trade, we have participated in various domestic and international exhibitions such as the Autumn Canton Fair, Beijing Exhibition, Shanghai Exhibition, Moscow, Ethiopia, and Russia, and have maintained long-term friendly cooperative relations with exhibition customers.

Customer visited

So far, we have received many customers from abroad, and they are all very satisfied with our company and products



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FAQ

Q: Why choose TIMEWAY MACHINE?
A: 1 . High quality with competitive price;
2 . Professional R&D team and 25 years export experience;
3 . Exported more than 60 countries;
4 . CE, ISO Certificates;
5 . 24 HOURS ONLINE SERVICE (SKYPE, WhatsApp, Wechat, Trademanager);
6 . 12 months quality warranty;
7 . Oversea engineers available for problem resolving;
Q: Do you have QC or any safety standards for your machinery?
A: yes, we have established a highly strict quality control department to guanrantee good quality.
Q: What's the MOQ?
A: 1 set (Only some low cost machines will be more than 1 set )
Q: What about the payment terms?
A: (1) T/T with 30% advanced payment, and 70% balance payment to be paid before shipment;
(2) Irrevocable LC at sight;
(3) Western Union, MoneyGram, etc.
Q: How about the warranty?
A: Warranty Period is one year after delivery. Even beyond the period, we will supply lifetime service for machine.