The Bobcat S770 is a large-frame skid steer built for commercial construction, demolition, and serious landscaping work. With 2,690 lb ROC and optional high-flow hydraulics at 32.2 GPM, it opens the door to demanding attachments. Here's exactly what it can run and how to match attachments to this machine.
The S770 is a large-frame wheeled skid steer on the Bobcat M-Series platform — a step up from the popular S650. It shares the same 2,690 lb ROC as the S650 but brings a larger frame, more weight, and an optional high-flow hydraulic kit. Commercial construction, demo work, and landscaping contractors across Ontario, the BC Lower Mainland, and Alberta urban sites run this machine regularly.
The S770 uses Bobcat's Bob-Tach quick attach system. Bob-Tach's coupler geometry is physically compatible with the industry-standard SSQA (Standard Skid Steer Quick Attach) with an adapter:
The S770's standard flow of 22.0 GPM covers the full range of common skid steer attachments. The optional 32.2 GPM high-flow kit opens mulchers, snowblowers, and cold planers. Here's how the numbers break down against common attachment categories:
| Flow Mode | GPM Available | Attachment Categories Supported |
|---|---|---|
| Standard Flow | 22.0 GPM | Buckets, forks, grapples, augers, brooms, blades, dozer blades, snow pushers, trenchers, post drivers, mixers, standard breakers |
| High Flow (optional kit) | 32.2 GPM | All standard flow items + mulchers (mid-size), snowblowers, rotary cutters, flail mowers, soil conditioners, cold planers (light-mid), large breakers |
Standard flow = 22.0 GPM. High flow = 32.2 GPM (if equipped with optional kit). ROC = 2,690 lbs.
| Attachment | Compatibility | Notes |
|---|---|---|
| GP Buckets (dirt, gravel, rock) | ✅ Standard Flow | 68–72" optimal for this frame; 78" max |
| Pallet Forks | ✅ Standard Flow | 2,690 lb ROC; 48" forks standard; handles construction pallets and bales |
| Bale Spears | ✅ Standard Flow | Single and double spear; large frames handle big rounds well |
| Auger Drives (standard flow) | ✅ Standard Flow | Up to 18" bits in most soil; 22 GPM runs standard auger motors well |
| Dozer / Angle Blades | ✅ Standard Flow | 84–96" width optimal; larger frame provides better blade stability |
| Grapples (root, rock, brush) | ✅ Standard Flow | 66–72" widths work well; common on demo and land-clearing sites |
| Snow Pushers (box blades) | ✅ Standard Flow | 10'–14' optimal for this frame; no hydraulics required for passive pushers |
| Power Rakes / Landscape Rakes | ✅ Standard Flow | Hydraulic versions run well at 22 GPM |
| Box Blades / Landplanes | ✅ Standard Flow | 84–96" typical; passive attachment, no flow required |
| Post Drivers | ✅ Standard Flow | Standard-flow post drivers operate within 22 GPM range |
| Cement / Concrete Mixers | ✅ Standard Flow | Most drum mixers run 10–18 GPM; S770 std flow handles comfortably |
| Sweepers / Angle Brooms | ✅ Standard Flow | Hydraulic brooms typically 12–18 GPM; 72–84" common widths |
| Trenchers (standard flow) | ✅ Standard Flow | Check weight — heavy trenchers approach ROC limit |
| Hydraulic Breakers (mid-size) | ✅ Standard Flow | Mid-size breakers typically 12–22 GPM; confirm spec sheet |
| Backhoe Attachments | ✅ Standard Flow | Mid-size backhoe attachments fit; verify weight vs ROC |
| Attachment | Compatibility | Notes |
|---|---|---|
| Mulchers / Forestry Heads (mid-size) | ✅ High Flow | Mulchers rated 25–32 GPM run well; aggressive 35+ GPM models exceed S770 HF ceiling |
| Snow Blowers (hydraulic) | ✅ High Flow | Most commercial snow blowers need 25–35 GPM; HF kit required |
| Rotary Cutters / Brush Cutters | ✅ High Flow | High-speed motors need 28–35 GPM; std flow underperforms significantly |
| Flail Mowers | ✅ High Flow | Commercial flail mowers typically 25–35 GPM; HF kit needed |
| Soil Conditioners | ✅ High Flow | Full-size soil conditioners run 25–38 GPM for rated performance |
| Cold Planers (light-mid) | ✅ High Flow | Light cold planers (up to 32 GPM rated) work; heavy planers needing 35+ GPM are marginal |
| Large Hydraulic Breakers | ✅ High Flow | Large-class breakers (750+ ft-lb) require 25+ GPM and higher pressure |
| Attachment | Compatibility | Notes |
|---|---|---|
| Heavy Forestry Mulchers (35+ GPM) | ⚠️ Marginal | Aggressive commercial forestry heads designed for 35–45+ GPM will run sluggishly on the S770's 32.2 GPM HF. Consider a T76, S86, or Cat 289D3 for these applications. |
| Heavy Cold Planers (35+ GPM) | ⚠️ Marginal | Heavy cold planers typically want 35+ GPM. The S770 HF ceiling of 32.2 GPM is close but may result in reduced cut speed or motor stress. Verify attachment-specific GPM requirement. |
| Stump Grinders | CHECK WEIGHT | Commercial stump grinders range 1,800–3,500 lbs. S770 ROC is 2,690 lbs — heavy units may exceed this. Also requires HF for most models. Verify attachment weight and GPM requirement before purchase. |
| Heavy Trenchers | CHECK WEIGHT | Heavy-duty trenchers (rock chain, wide boom) can reach 2,000–2,800 lbs. Check attachment weight rating vs ROC. |
The S770 is a large-frame skid steer — bigger than the S650 — which means it can handle wider attachments while maintaining stability. These recommendations reflect the machine's physical footprint and ROC.
The S770 is a strong fit for Ontario commercial construction, where its larger frame and high-ROC capability handle demo grapples, heavy buckets, and commercial snow pushers in parking lot and site management applications. Ontario Bobcat dealers (Bobcat of Toronto, Ottawa, Barrie, and regional dealers) support the S770 with parts and warranty service. The optional high-flow kit makes it competitive for landscaping and brush-clearing contracts common in the GTA fringe and cottage country belts.
In the BC Lower Mainland, the S770 appears on urban infill construction sites and landscaping operations where compact wheeled machines need to manage heavy material loads. Vertical lift geometry — useful for truck-loading above bed rails — is particularly practical on BC urban job sites where material is staged in trucks. Bobcat's BC dealer network (Metro Van and Fraser Valley locations) provides warranty and service support.
Alberta's urban construction market (Calgary, Edmonton) runs mid-to-large frame skid steers heavily. The S770 fits fleet operators who need a versatile machine for grading, material handling, and snow management. The optional high-flow kit is common in Alberta fleets that run mulching and brush clearing on the urban periphery and acreage development sites. Bobcat Canada dealer presence in Alberta supports parts availability nationwide.
The S770 handles everything from demo grapples to commercial snow pushers. If you have the HF kit, mid-size mulchers and snowblowers are also in range. Start with the catalog or browse by attachment type.