Western Coalfields Limited Tender

Anchor Testing Machine 50 T Capacity TECHNICAL SPECIFICATION 1. The equipment should be suitable to measure the anchorage resistance (Pull out force) of roof bolts and roof stitching confirming to the latest DGMS circular no. 5 of 2002 and DGMS circular no 11 of 2002 clause VII 2. This should be incorporated with portable hydraulic jack of minimum 50 tonne capacity with a central hole and bridge assembly. 3. It should be fitted with suitable dial type 100 mm dia pressure gauge of reputed quality and calibrated from 0 to 50 tonnes with least count of 500 kg 4. Jucking device to be operated with a separate hydraulic pump by suitable operating level. The Hydraulic fluid used in the machine shall be DGMS approved. 5. At least five (5) meter long DGMS APPROVED high pressure hydraulic hose with and fittings is to be provided for connecting the hydraulic jack. 6. The run of the piston should be minimum 15 cm. 7. The testing machine should be complete with all accessories like pulling head for bolts, bearing plate, pulling head for wire rope and other hardware etc. 8. A separate reaping kit along with operating manual & spare parts list is to be provided. 9. Manufacturers name plate with SL No. of the machine to be provided in each machine. 10. Manufacturers test certificate to be provided with each machine

Vibration meter/Vibrometer ( SIESMOGRAPH) Technical specification : The vibration measuring 4 channel system shall be compact light weight and handy to operate for the measurement of ground vibration in respect of peak particle velocity in various directions frequency and air (noise) due to ballasting etc. It shall be supplied with all the required ready to use accessories like ( external triaxial geophones, microphone, cable for geophone and microphone, USB adapter cable. AC power charger, carrying case, manual etc) and software. • Range at least 200 mm /sec or more . • Frequency analysis : frequency at peak , USBM, DGMS(A)DGMS(B), CRI OSMRE & DIN analysis with quick report. • Sample rate : 1024 S/s to 4096 S/s per channel ( independent of record time) • Responses : All Channels- 2 to 250 HZ(_33dB) • Record mode: Manual and continuous. • Record time : 1 to 20 sec (programmable in one – second steps) auto record time programmable for 1 to 9 sec. • Storage Capacity : Minimum 250 one second full – wave form events at 1024 S/s sample rate event summaries : Minimum 1500 • Battery life : Rechargeable sealed gel cell battery – capacity for at least 200 hours of continuous monitoring • Operating temperature : Must operate with full efficiency from 0 degree Celsius to 48 degree Celsius. • Power charge : suitable charger with connecting cable etc. For 220 v 50C/s AC input supply. • Event report data analysis software: The data analysis software should generate event report on CMRI, DGMS (A), DGMS (B) permissively ground vibrating standards. The sample report must be enclosed to demonstrate software capability. • Repair/calibration/after sales service facility in India : after sales service repair facility and calibration facility for the supplied instrument should be available in India for yearly calibration and testing for ascertaining the reliability to the instrument and servicing /repair which may be needed . The same must be committed and proved by the tenderer . Inspection of the repair , calibration/testing facility within India shall be done by the authorised representative.