Q: How do I confirm the JS380RT Stick-Mount eagle-beak shear matches my 30-38 ton excavator?
A: JISAN maintains a comprehensive hydraulic database for CAT, Komatsu, Sany, Volvo, and all mainstream 30-38T carriers. Our engineers calibrate this hydraulic shear for excavator to match your machine's exact 300-320 bar working pressure and 200-250 L/min flow rate. This precise matching prevents host machine overheating and ensures maximum cutting force at the dipper arm joint.
Q: What advantage does the 2.4s cycle bring to heavy scrap yard operations?
A: Ordinary heavy shears are slow, but the JS380RT eagle-beak shear utilizes a patented differential acceleration valve optimized for 200-250 L/min flow, reducing cycle time to just 2.4 seconds. As a high-efficiency scrap metal shear, it slices through thick H-beams and ship plates instantly, boosting daily yard output by over 30%.
Q: How does the 3800kg Hardox450 body handle extreme structural demolition?
A: Weighing a massive 3800kg, the shell and upper bracket adopt genuine SSAB Hardox450 wear-resistant steel. As a premium excavator steel shear, it provides the ultimate rigidity to withstand the immense torsional stress of stick-mounted operations without deformation, ensuring a significantly longer lifespan than cheap carbon-steel alternatives.
Q: What after-sales support and warranty do you provide for this flagship shear?
A: We offer a global 10-30-824 rapid service (10-min reply, 30-min plan, 8-hour parts dispatch).
12-month: shell, upper bracket, slewing bearing, hydraulic motor, cylinders
6-month: dual valve, pinion gear, speed-up valve
3-month: solenoid valve, pivot pins
1-month: alloy steel blades (breakage covered)
Every unit passes 48 lab tests, and bulk excavator shear parts are always in stock for rapid global shipping.
Q: How does this Stick-Mount model compare to a stationary scrap metal gantry shear?
A: Unlike a stationary gantry shear or scrap shear baler that requires massive concrete foundations and material feeding, this Stick-Mount JS380RT brings extreme cutting force directly to the scrap pile or ship hull. It operates as a highly mobile scrap steel rotary shear, replacing the need for fixed infrastructure and saving millions in setup costs while maintaining the agility of a 30-38T excavator.
Q: What is the service life of the blades, and how do I maintain them?
A: The double-sided alloy steel blades can be flipped and reused for 3,000–5,000 hours under heavy scrap work. A 1-month warranty covers breakage and chunk peeling. Uniform wear is normal consumable loss. We recommend adjusting the blade clearance regularly to prevent thick structural steel from jamming the 600mm wide jaws.
Q: What sets JISAN apart from cheap alternatives on the market?
A: Low-cost carbon steel frames bend easily at the pivot points under high leverage stress. As a direct excavator shear manufacturer, JISAN uses integrated Hardox450 steel and one-piece forged alloy pivot pins, guaranteeing this china excavator shear will not deform even under the maximum 320 bar hydraulic pressure of a 30-38T carrier. Official SSAB certificates are provided for customs.
Q: What is the warranty policy for the Hardox450 shell plates?
A: Free component replacement is provided for original structural cracks within 12 months on the shear head for excavator. If a weld crack occurs within 6 months, we reimburse 200 RMB for local welding costs. Cracks caused by using the shear as a hammer, pry bar, or cutting beyond the rated capacity are strictly excluded.
Q: Can it cut concrete, and how does it compare to an alligator shear?
A: Only exposed rebar can be cut; solid concrete is strictly prohibited to avoid edge chipping. Unlike a standard alligator shear for excavator setup which struggles with thick I-beams, our eagle-beak design provides superior piercing force and a massive 600mm jaw opening for heavy steel structures. For pure concrete, a hydraulic pulverizer is required.
Q: Why choose the rotating model with an 806mm diameter over a fixed model?
A: The JS380RT functions as a rotating scrap metal rotary shear with a massive 806mm rotation diameter and 360° continuous rotation. This allows operators to grab irregular ship hulls and pipes from any angle deep inside cargo holds, a flexibility that fixed models completely lack. Both versions share identical Hardox450 warranties.
Q: Will the warranty be shortened under 24-hour continuous ship-breaking operation?
A: The standard 12-month warranty assumes an 8-hour single shift. If your ship-breaking yard runs these demolition scrap shears on a 24-hour schedule, the warranty period is halved. We recommend strict 4-hour lubrication intervals and custom thickened Hardox jaws for non-stop heavy-duty operations.
Q: Can the shear operate underwater in ship-breaking yards?
A: While frequently used in ship-breaking, prolonged submersion of this hydraulic scrap metal shear is not recommended. If used in wet or muddy conditions, immediate full cleaning and greasing are required after each shift. Rust or jamming caused by poor maintenance in watery environments is excluded from warranty.
Q: Is damage from improper Stick-Mount installation covered by warranty?
A: Stick-mount (forearm installation) provides ultimate wrist-like flexibility. New 30-38T excavators can fit this excavator hydraulic shear attachment directly to the dipper arm, while refit kits are supplied for older machines. Motor or cylinder damage resulting from self-modified or poorly protected oil circuits is excluded.
Q: Will insufficient lubrication void the warranty?
A: Yes. You must grease all pivot points and the slewing bearing every 4 hours under heavy load. Bearing and pin failures caused by insufficient lubrication are considered maintenance negligence and are not covered under warranty.
Q: What are the cold-weather operation guidelines?
A: When operating below 0°C, perform a 5–10 minute no-load warm-up before cutting to protect the seals and hydraulic motor. Use low-temperature hydraulic oil if temperatures drop below -10°C. Freeze cracks resulting from poor winter maintenance are excluded.
Q: Is surface rust from outdoor rain storage covered?
A: A heavy-duty anti-rust coating is applied before delivery. However, surface rust caused by prolonged outdoor storage in the rain without a protective cover is excluded from warranty.
Q: What is the standard storage procedure when the 3800kg shear is unmounted?
A: Clean all metal slag, coat the Hardox shell with anti-rust oil, fully retract the cylinders, and wrap the unit in waterproof film if stored indoors. Outdoor storage without protection is not recommended for long-term idle periods.
Q: Are hydraulic leaks and slow movements covered under warranty?
A: Factory defects in the Finnish-imported piston motor, valves, and cylinders causing leaks or slow movements on the hydraulic shear attachment for excavator are covered for 12 months. Damage caused by self-adjusted pressure settings exceeding 320 bar or contaminated hydraulic oil is excluded.
Q: What voids the 12-month warranty on the slewing bearing and motor?
A: Tooth breakage on the slewing bearing due to insufficient greasing, or motor shaft breakage caused by hard impacts and unauthorized pressure tuning, will void the warranty for these specific components of the excavator shear attachment.
Q: What is the lead time for overseas spare parts delivery?
A: Warranty replacement excavator shear parts are provided free of charge; the buyer bears all freight and tariff costs. Delivery takes 3–7 days from overseas warehouses, 20–40 days by sea, or 7–15 days via air freight for emergency downtime situations.
Q: Can the JS380RT be customized for OEM orders?
A: Yes. As experienced mobile scrap shear manufacturers, we can customize jaw sizes (larger than the standard 600mm opening) and reinforce the stick-mount bracket to handle extra torsional stress. Custom frames still use Hardox450 steel, with a 7–15 day lead time after 3D drawing confirmation.
Q: What is the export process and payment terms?
A: The MOQ is 1 unit, with bulk discounts available for fleet orders of 10+ sets. We accept T/T, L/C, and Western Union (30% deposit before production). The process is: Confirm Model → Issue PI → Inspection → Shipment.
Q: Do export documents include the Hardox certificate?
A: Yes. Full export documentation for our scrap metal shears made in china includes the Commercial Invoice, B/L, CO, RCEP, CE certificate, official SSAB Hardox certificate, and factory inspection report for smooth global customs clearance.
Q: Is rust occurring during sea transit covered?
A: We use full anti-rust packing with desiccants for every 3800kg excavator scrap shear unit. Any minor surface oxidation occurring during long sea transit or post-delivery outdoor storage is considered normal and is excluded from warranty.
Q: What is the step-by-step warranty claim process?
A: 1. Provide the serial number of the scrap metal shear machine, a fault video, and hour records. 2. Our engineers determine if the damage is a factory defect or man-made. 3. Free spare parts and video installation guides are provided for eligible claims. 4. Welding cost reimbursement (200 RMB) applies within 6 months.
Q: Does mentioning brands like CAT or Sany imply official cooperation?
A: No. Brand names are mentioned solely to indicate the compatibility of the JS380RT excavator metal shear with various 30-38 ton carrier models. It does not imply official authorization, endorsement, or trademark infringement by these manufacturers.
